diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/QuerySerializer.java b/src/main/java/de/ids_mannheim/korap/query/serialize/QuerySerializer.java
index f124a00..6458578 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/QuerySerializer.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/QuerySerializer.java
@@ -27,45 +27,45 @@
             .getLogger(QuerySerializer.class);
 
 
-//    /**
-//     * @param args
-//     * @throws QueryException
-//     */
-//    public static void main(String[] args) {
-//        /*
-//         * just for testing...
-//		 */
-//        QuerySerializer jg = new QuerySerializer();
-//        int i = 0;
-//        String[] queries;
-//        if (args.length == 0) {
-//            queries = new String[]{
-//
-//            };
-//        } else
-//            queries = new String[]{args[0]};
-//
-//        for (String q : queries) {
-//            i++;
-//            try {
-//                System.out.println(q);
-//                String ql = "cosmas2";
-//                jg.run(q, ql, System.getProperty("user.home") + "/" + ql + "_" + i + ".jsonld");
-//                System.out.println();
-//            } catch (NullPointerException npe) {
-//                npe.printStackTrace();
-//                System.out.println("null\n");
-//            } catch (JsonGenerationException e) {
-//                e.printStackTrace();
-//            } catch (JsonMappingException e) {
-//                e.printStackTrace();
-//            } catch (IOException e) {
-//                e.printStackTrace();
-//            } catch (QueryException e) {
-//                e.printStackTrace();
-//            }
-//        }
-//    }
+    /**
+     * @param args
+     * @throws QueryException
+     */
+    public static void main(String[] args) {
+        /*
+         * just for testing...
+		 */
+        QuerySerializer jg = new QuerySerializer();
+        int i = 0;
+        String[] queries;
+        if (args.length == 0) {
+            queries = new String[]{
+
+            };
+        } else
+            queries = new String[]{args[0]};
+
+        for (String q : queries) {
+            i++;
+            try {
+                System.out.println(q);
+                String ql = "cosmas2";
+                jg.run(q, ql, System.getProperty("user.home") + "/" + ql + "_" + i + ".jsonld");
+                System.out.println();
+            } catch (NullPointerException npe) {
+                npe.printStackTrace();
+                System.out.println("null\n");
+            } catch (JsonGenerationException e) {
+                e.printStackTrace();
+            } catch (JsonMappingException e) {
+                e.printStackTrace();
+            } catch (IOException e) {
+                e.printStackTrace();
+            } catch (QueryException e) {
+                e.printStackTrace();
+            }
+        }
+    }
 
     /**
      * Runs the QuerySerializer by initializing the relevant AbstractSyntaxTree implementation (depending on specified query language)
@@ -77,24 +77,24 @@
      * @throws IOException
      * @throws QueryException
      */
-//    public void run(String query, String queryLanguage, String outFile)
-//            throws IOException, QueryException {
-//        if (queryLanguage.equals("poliqarp")) {
-//            ast = new PoliqarpPlusTree(query);
-//        } else if (queryLanguage.toLowerCase().equals("cosmas2")) {
-//            ast = new CosmasTree(query);
-//        } else if (queryLanguage.toLowerCase().equals("poliqarpplus")) {
-//            ast = new PoliqarpPlusTree(query);
-//        } else if (queryLanguage.toLowerCase().equals("cql")) {
-//            ast = new CQLTree(query);
-//        } else if (queryLanguage.toLowerCase().equals("annis")) {
-//            ast = new AqlTree(query);
-//        } else {
-//            throw new QueryException(queryLanguage + " is not a supported query language!");
-//        }
-//        Map<String, Object> requestMap = ast.getRequestMap();
-////        mapper.writeValue(new File(outFile), requestMap);
-//    }
+    public void run(String query, String queryLanguage, String outFile)
+            throws IOException, QueryException {
+        if (queryLanguage.equals("poliqarp")) {
+            ast = new PoliqarpPlusTree(query);
+        } else if (queryLanguage.toLowerCase().equals("cosmas2")) {
+            ast = new CosmasTree(query);
+        } else if (queryLanguage.toLowerCase().equals("poliqarpplus")) {
+            ast = new PoliqarpPlusTree(query);
+        } else if (queryLanguage.toLowerCase().equals("cql")) {
+            ast = new CQLTree(query);
+        } else if (queryLanguage.toLowerCase().equals("annis")) {
+            ast = new AqlTree(query);
+        } else {
+            throw new QueryException(queryLanguage + " is not a supported query language!");
+        }
+        Map<String, Object> requestMap = ast.getRequestMap();
+//        mapper.writeValue(new File(outFile), requestMap);
+    }
 
     public QuerySerializer setQuery(String query, String ql, String version)
             throws QueryException {