diff --git a/assistant_callback.php b/assistant_callback.php
index 15b6f79..aca4d9a 100644
--- a/assistant_callback.php
+++ b/assistant_callback.php
@@ -1,248 +1,248 @@
-<?php
-require_once("config.php");
-
-class write {
-  public static function do($json) {
-    echo json_encode($json)."\n";
-    exit();
-  }
-}
-
-class conv {
-  public static function ask($msg_array) {
-    $items = array();
-
-    foreach ($msg_array as $msg) {
-      $items[] = array("simpleResponse" => array("textToSpeech" => $msg));
-    }
-
-    self::ask_custom($items);
-  }
-
-  public static function ask_followup($msg, &$i18n) {
-    self::ask([$msg, $i18n->msg("followup_".mt_rand(1, 3))]);
-  }
-
-  public static function ask_custom($items) {
-    $json = array();
-    $json["payload"] = array();
-    $json["payload"]["google"] = array();
-    $json["payload"]["google"]["expectUserResponse"] = true;
-    $json["payload"]["google"]["richResponse"] = array();
-    $json["payload"]["google"]["richResponse"]["items"] = $items;
-
-    write::do($json);
-  }
-
-  public static function has($item, &$json) {
-    foreach ($json["originalDetectIntentRequest"]["payload"]["surface"]["capabilities"] as $cap) {
-      if ($cap["name"] == $item) {
-        return true;
-      }
-    }
-    return false;
-  }
-}
-
-class i18n {
-  public static $hllist = array("en", "es");
-  public $i18n_strings = null;
-  public $language = null;
-
-  function __construct($lang) {
-    global $_GET;
-    global $conf;
-
-    if (empty($this->i18n_strings)) {
-      $this->i18n_strings = array();
-    }
-
-    $this->language = $lang;
-
-    $this->i18n_strings = json_decode(file_get_contents("assistant/".$this->language.".json"), true);
-
-    return true;
-  }
-
-  function msg($message, $strings = null) {
-    if (!isset($this->i18n_strings[$message])) {
-      return false;
-    }
-
-    $string = $this->i18n_strings[$message];
-
-    if ($strings != null && is_array($strings)) {
-      foreach ($strings as $i => $subst) {
-        $string = str_replace("{".$i."}", $subst, $string);
-      }
-    }
-
-    return $string;
-  }
-}
-
-function get_graph() {
-  global $conf;
-  return json_decode(file_get_contents($conf["apiurl"]), true);
-}
-
-function comma($array, $wait=false) {
-  global $i18n;
-  if (count($array) == 0) {
-    return "";
-  }
-  if (count($array) == 1) {
-    return $array[0];
-  }
-  $break = ($wait ? '<break time="0.5s"/>' : "");
-  return implode($break.", ", array_slice($array, 0, -1)).$break.", ".$i18n->msg("and")." ".$array[count($array)-1];
-}
-
-$json = json_decode(file_get_contents('php://input'), true);
-
-if ($json === NULL || !isset($json["originalDetectIntentRequest"]) || !isset($json["originalDetectIntentRequest"]["source"]) || $json["originalDetectIntentRequest"]["source"] != "google") {
-  exit();
-}
-
-$graph = get_graph();
-$lang = (isset($json["queryResult"]["languageCode"]) && in_array(substr($json["queryResult"]["languageCode"], 0, 2), i18n::$hllist) ? substr($json["queryResult"]["languageCode"], 0, 2) : "en");
-$i18n = new i18n($lang);
-
-switch ($json["queryResult"]["intent"]["displayName"]) {
-  case "showVertex":
-  if (!isset($json["queryResult"]["parameters"]["Vertex"])) {
-    exit();
-  }
-  
-  $shortest = -1;
-  $closest = -1;
-  $closest_id = -1;
-
-  foreach ($graph["nodes"] as $id => $node) {
-    $lev = levenshtein(strtolower($json["queryResult"]["parameters"]["Vertex"]), strtolower($node["name"]));
-
-    if ($lev == 0) {
-      $closest = $node["name"];
-      $shortest = $lev;
-      $closest_id = $id;
-    }
-
-    if (($lev <= $shortest || $shortest < 0) && $lev <= 3) {
-      $closest = $node["name"];
-      $shortest = $lev;
-      $closest_id = $id;
-    }
-  }
-
-  if ($shortest != -1) {
-    $neighbors = array();
-    // We're suposing each vertex has a different name. If not, this would get rid of some of the edges, but if two vertexs had the same name there would be no way to differentiate them anyway, so I think it's ok.
-    foreach ($graph["edges"] as $edge) {
-      if ($edge["a"] == $closest_id) {
-        $neighbors[$graph["nodes"][$edge["b"]]["name"]] = $edge["votes"];
-      } elseif ($edge["b"] == $closest_id) {
-        $neighbors[$graph["nodes"][$edge["a"]]["name"]] = $edge["votes"];
-      }
-    }
-    if (count($neighbors) == 0) {
-      conv::ask_followup($i18n->msg("new_to_graph", array("person" => $closest)), $i18n);
-    } else {
-      arsort($neighbors);
-      $params = array("person" => $closest, "count" => (count($neighbors) == 1 ? $i18n->msg("count_singular") : $i18n->msg("count_plural", array("count" => count($neighbors)))));
-      /*if (conv::has("actions.capability.SCREEN_OUTPUT", $json)) {
-        $items = [
-          array(
-            "simpleResponse" => array(
-              "textToSpeech" => $i18n->msg("edges_display", $params)
-            )
-          ),
-          array(
-            "tableCard" => array(
-              "columnProperties" => [
-                array(
-                  "header" => "Adjacent vertex"
-                ),
-                array("header" => "Votes")
-              ],
-              "rows" => []
-            )
-          ),
-          array(
-            "simpleResponse" => array(
-              "textToSpeech" => $i18n->msg("followup_".mt_rand(1, 3))
-            )
-          )
-        ];
-        foreach ($neighbors as $neighbor => $votes) {
-          $items[1]["tableCard"]["rows"][] = array("cells" => [array("text" => $neighbor), array("text" => (string)$votes)]);
-        }
-        conv::ask_custom($items);
-      } else {*/ // This code shows a table if the user has a screen, but
-                 // unfortunately tables are not public yet.
-                 // @TODO: Uncomment when tables are out of developer preview.
-        $people = array_keys($neighbors);
-        $people_string = comma($people);
-        $params["edges"] = $people_string;
-        $num = mt_rand(1, 3);
-        conv::ask_followup($i18n->msg("edges_".$num, $params), $i18n);
-      /*}*/
-    }
-  } else {
-    conv::ask_followup($i18n->msg("not_found", array("person" => $json["queryResult"]["parameters"]["Vertex"])), $i18n);
-  }
-  break;
-
-  case "randomFact":
-  $rand = mt_rand(0, 5);
-  switch ($rand) {
-    case 0: // Last edge in the graph
-    $last = array_values(array_slice($graph["edges"], -1))[0];
-    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_last_edge", array("person1" => $graph["nodes"][$last["a"]]["name"], "person2" => $graph["nodes"][$last["b"]]["name"])))), $i18n);
-    break;
-
-    case 1: // Num vertices
-    conv::ask_followup($i18n->msg("didyouknow_num_vertices", array("count" => count($graph["nodes"]))), $i18n);
-    break;
-
-    case 2: // Num edges
-    conv::ask_followup($i18n->msg("didyouknow_num_edges", array("count" => count($graph["edges"]))), $i18n);
-    break;
-
-    case 3: // First 3 vertices K3
-    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_k3"))), $i18n);
-    break;
-
-    case 4: // Creator
-    conv::ask_followup($i18n->msg("didyouknow_creator"), $i18n);
-    break;
-
-    case 5: // Groph
-    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_groph"))), $i18n);
-    break;
-  }
-  
-  break;
-
-  case "numVertexs":
-  conv::ask_followup($i18n->msg("num_vertices", array("count" => count($graph["nodes"]))), $i18n);
-  break;
-
-  case "numEdges":
-  conv::ask_followup($i18n->msg("num_edges", array("count" => count($graph["edges"]))), $i18n);
-  break;
-
-  case "latestNews":
-  $param = (isset($json["queryResult"]["parameters"]["numEdges"]) ? $json["queryResult"]["parameters"]["numEdges"] : null);
-  $num = (isset($param) && !empty($param) ? (int)$param : 4);
-  $last = array_values(array_slice($graph["edges"], -$num));
-  $edges = [];
-  foreach ($last as $edge) {
-    $edges[] = $graph["nodes"][$edge["a"]]["name"]." - ".$graph["nodes"][$edge["b"]]["name"];
-  }
-  $edges_string = comma($edges, true);
-  conv::ask_followup($i18n->msg((isset($param) && !empty($param) ? "latest_news_count" : "latest_news"), array("edges" => $edges_string, "count" => $num)), $i18n);
-  break;
-
-  default:
-  exit();
-}
+<?php
+require_once("config.php");
+
+class write {
+  public static function do($json) {
+    echo json_encode($json)."\n";
+    exit();
+  }
+}
+
+class conv {
+  public static function ask($msg_array) {
+    $items = array();
+
+    foreach ($msg_array as $msg) {
+      $items[] = array("simpleResponse" => array("textToSpeech" => $msg));
+    }
+
+    self::ask_custom($items);
+  }
+
+  public static function ask_followup($msg, &$i18n) {
+    self::ask([$msg, $i18n->msg("followup_".mt_rand(1, 3))]);
+  }
+
+  public static function ask_custom($items) {
+    $json = array();
+    $json["payload"] = array();
+    $json["payload"]["google"] = array();
+    $json["payload"]["google"]["expectUserResponse"] = true;
+    $json["payload"]["google"]["richResponse"] = array();
+    $json["payload"]["google"]["richResponse"]["items"] = $items;
+
+    write::do($json);
+  }
+
+  public static function has($item, &$json) {
+    foreach ($json["originalDetectIntentRequest"]["payload"]["surface"]["capabilities"] as $cap) {
+      if ($cap["name"] == $item) {
+        return true;
+      }
+    }
+    return false;
+  }
+}
+
+class i18n {
+  public static $hllist = array("en", "es");
+  public $i18n_strings = null;
+  public $language = null;
+
+  function __construct($lang) {
+    global $_GET;
+    global $conf;
+
+    if (empty($this->i18n_strings)) {
+      $this->i18n_strings = array();
+    }
+
+    $this->language = $lang;
+
+    $this->i18n_strings = json_decode(file_get_contents("assistant/".$this->language.".json"), true);
+
+    return true;
+  }
+
+  function msg($message, $strings = null) {
+    if (!isset($this->i18n_strings[$message])) {
+      return false;
+    }
+
+    $string = $this->i18n_strings[$message];
+
+    if ($strings != null && is_array($strings)) {
+      foreach ($strings as $i => $subst) {
+        $string = str_replace("{".$i."}", $subst, $string);
+      }
+    }
+
+    return $string;
+  }
+}
+
+function get_graph() {
+  global $conf;
+  return json_decode(file_get_contents($conf["apiurl"]), true);
+}
+
+function comma($array, $wait=false) {
+  global $i18n;
+  if (count($array) == 0) {
+    return "";
+  }
+  if (count($array) == 1) {
+    return $array[0];
+  }
+  $break = ($wait ? '<break time="0.5s"/>' : "");
+  return implode($break.", ", array_slice($array, 0, -1)).$break.", ".$i18n->msg("and")." ".$array[count($array)-1];
+}
+
+$json = json_decode(file_get_contents('php://input'), true);
+
+if ($json === NULL || !isset($json["originalDetectIntentRequest"]) || !isset($json["originalDetectIntentRequest"]["source"]) || $json["originalDetectIntentRequest"]["source"] != "google") {
+  exit();
+}
+
+$graph = get_graph();
+$lang = (isset($json["queryResult"]["languageCode"]) && in_array(substr($json["queryResult"]["languageCode"], 0, 2), i18n::$hllist) ? substr($json["queryResult"]["languageCode"], 0, 2) : "en");
+$i18n = new i18n($lang);
+
+switch ($json["queryResult"]["intent"]["displayName"]) {
+  case "showVertex":
+  if (!isset($json["queryResult"]["parameters"]["Vertex"])) {
+    exit();
+  }
+  
+  $shortest = -1;
+  $closest = -1;
+  $closest_id = -1;
+
+  foreach ($graph["nodes"] as $id => $node) {
+    $lev = levenshtein(strtolower($json["queryResult"]["parameters"]["Vertex"]), strtolower($node["name"]));
+
+    if ($lev == 0) {
+      $closest = $node["name"];
+      $shortest = $lev;
+      $closest_id = $id;
+    }
+
+    if (($lev <= $shortest || $shortest < 0) && $lev <= 3) {
+      $closest = $node["name"];
+      $shortest = $lev;
+      $closest_id = $id;
+    }
+  }
+
+  if ($shortest != -1) {
+    $neighbors = array();
+    // We're suposing each vertex has a different name. If not, this would get rid of some of the edges, but if two vertexs had the same name there would be no way to differentiate them anyway, so I think it's ok.
+    foreach ($graph["edges"] as $edge) {
+      if ($edge["a"] == $closest_id) {
+        $neighbors[$graph["nodes"][$edge["b"]]["name"]] = $edge["votes"];
+      } elseif ($edge["b"] == $closest_id) {
+        $neighbors[$graph["nodes"][$edge["a"]]["name"]] = $edge["votes"];
+      }
+    }
+    if (count($neighbors) == 0) {
+      conv::ask_followup($i18n->msg("new_to_graph", array("person" => $closest)), $i18n);
+    } else {
+      arsort($neighbors);
+      $params = array("person" => $closest, "count" => (count($neighbors) == 1 ? $i18n->msg("count_singular") : $i18n->msg("count_plural", array("count" => count($neighbors)))));
+      /*if (conv::has("actions.capability.SCREEN_OUTPUT", $json)) {
+        $items = [
+          array(
+            "simpleResponse" => array(
+              "textToSpeech" => $i18n->msg("edges_display", $params)
+            )
+          ),
+          array(
+            "tableCard" => array(
+              "columnProperties" => [
+                array(
+                  "header" => "Adjacent vertex"
+                ),
+                array("header" => "Votes")
+              ],
+              "rows" => []
+            )
+          ),
+          array(
+            "simpleResponse" => array(
+              "textToSpeech" => $i18n->msg("followup_".mt_rand(1, 3))
+            )
+          )
+        ];
+        foreach ($neighbors as $neighbor => $votes) {
+          $items[1]["tableCard"]["rows"][] = array("cells" => [array("text" => $neighbor), array("text" => (string)$votes)]);
+        }
+        conv::ask_custom($items);
+      } else {*/ // This code shows a table if the user has a screen, but
+                 // unfortunately tables are not public yet.
+                 // @TODO: Uncomment when tables are out of developer preview.
+        $people = array_keys($neighbors);
+        $people_string = comma($people);
+        $params["edges"] = $people_string;
+        $num = mt_rand(1, 3);
+        conv::ask_followup($i18n->msg("edges_".$num, $params), $i18n);
+      /*}*/
+    }
+  } else {
+    conv::ask_followup($i18n->msg("not_found", array("person" => $json["queryResult"]["parameters"]["Vertex"])), $i18n);
+  }
+  break;
+
+  case "randomFact":
+  $rand = mt_rand(0, 5);
+  switch ($rand) {
+    case 0: // Last edge in the graph
+    $last = array_values(array_slice($graph["edges"], -1))[0];
+    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_last_edge", array("person1" => $graph["nodes"][$last["a"]]["name"], "person2" => $graph["nodes"][$last["b"]]["name"])))), $i18n);
+    break;
+
+    case 1: // Num vertices
+    conv::ask_followup($i18n->msg("didyouknow_num_vertices", array("count" => count($graph["nodes"]))), $i18n);
+    break;
+
+    case 2: // Num edges
+    conv::ask_followup($i18n->msg("didyouknow_num_edges", array("count" => count($graph["edges"]))), $i18n);
+    break;
+
+    case 3: // First 3 vertices K3
+    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_k3"))), $i18n);
+    break;
+
+    case 4: // Creator
+    conv::ask_followup($i18n->msg("didyouknow_creator"), $i18n);
+    break;
+
+    case 5: // Groph
+    conv::ask_followup($i18n->msg("random_fact", array("fact" => $i18n->msg("didyouknow_groph"))), $i18n);
+    break;
+  }
+  
+  break;
+
+  case "numVertexs":
+  conv::ask_followup($i18n->msg("num_vertices", array("count" => count($graph["nodes"]))), $i18n);
+  break;
+
+  case "numEdges":
+  conv::ask_followup($i18n->msg("num_edges", array("count" => count($graph["edges"]))), $i18n);
+  break;
+
+  case "latestNews":
+  $param = (isset($json["queryResult"]["parameters"]["numEdges"]) ? $json["queryResult"]["parameters"]["numEdges"] : null);
+  $num = (isset($param) && !empty($param) ? (int)$param : 4);
+  $last = array_values(array_slice($graph["edges"], -$num));
+  $edges = [];
+  foreach ($last as $edge) {
+    $edges[] = $graph["nodes"][$edge["a"]]["name"]." - ".$graph["nodes"][$edge["b"]]["name"];
+  }
+  $edges_string = comma($edges, true);
+  conv::ask_followup($i18n->msg((isset($param) && !empty($param) ? "latest_news_count" : "latest_news"), array("edges" => $edges_string, "count" => $num)), $i18n);
+  break;
+
+  default:
+  exit();
+}