Add exclude punctuation option

Change-Id: Ie90a59f77a92b8007af92411bcbaf00a8c910722
diff --git a/src/main/java/org/ids_mannheim/Utils.java b/src/main/java/org/ids_mannheim/Utils.java
index e8413b5..8f4e801 100644
--- a/src/main/java/org/ids_mannheim/Utils.java
+++ b/src/main/java/org/ids_mannheim/Utils.java
@@ -55,5 +55,8 @@
                 .replaceAll("^(\\d+)\t>\t--\t[^\t]+", "$1\t>\t>\t\\$(");
     }
 
+    public static boolean isPunctuation(String token, String lemma, String pos) {
+        return pos.startsWith("$") || token.equals("\"") || token.equals("'") || token.equals("<") || token.equals(">");
+    }
 }