diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java b/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
index 159ee10..bd11884 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/PoliqarpPlusTree.java
@@ -83,7 +83,7 @@
 	/**
 	 * Recursively calls itself with the children of the currently active node, traversing the tree nodes in a top-down, depth-first fashion.
 	 * A list is maintained that contains all visited nodes
-	 * in case they have been directly addressed by its (grand-/grand-grand-/...) parent node, such that some processing time is saved, as these node will
+	 * which have been directly addressed by their (grand-/grand-grand-/...) parent nodes, such that some processing time is saved, as these node will
 	 * not be processed. This method is effectively a list of if-statements that are responsible for treating the different node types correctly and filling the
 	 * respective maps/lists.
 	 *
diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/TreeTemplate.java b/src/main/java/de/ids_mannheim/korap/query/serialize/TreeTemplate.java
index e98ca7b..80d4a12 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/TreeTemplate.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/TreeTemplate.java
@@ -177,21 +177,6 @@
 		
 	}
 
-//	/**
-//	 * Returns the category (or 'label') of the root of a ParseTree.
-//	 * @param node
-//	 * @return
-//	 */
-//	public String getNodeCat(ParseTree node) {
-//		String nodeCat = node.toStringTree(qlParser);
-//		Pattern p = Pattern.compile("\\((.*?)\\s"); // from opening parenthesis to 1st whitespace
-//		Matcher m = p.matcher(node.toStringTree(qlParser));
-//		if (m.find()) {
-//			nodeCat = m.group(1);
-//		} 
-//		return nodeCat;
-//	}
-	
 	@SuppressWarnings("unused")
 	private void putIntoSuperObject(LinkedHashMap<String, Object> object) {
 		putIntoSuperObject(object, 0);
diff --git a/src/test/java/PoliqarpPlusTreeTest.java b/src/test/java/PoliqarpPlusTreeTest.java
index ea4a0a6..1836792 100644
--- a/src/test/java/PoliqarpPlusTreeTest.java
+++ b/src/test/java/PoliqarpPlusTreeTest.java
@@ -194,7 +194,7 @@
 				"{@type=korap:span, key=s}," +
 				"{@type=korap:group, operation=operation:sequence, operands=[" +
 					"{@type=korap:token, wrap={@type=korap:term, layer=lemma, key=Mann, match=match:eq}}" +
-				"], offset-min=1, offset-max=1}" +
+				"], leftOffset={@type=korap:boundary, min=1, max=1}}" +
 			"]}";
 		ppt = new PoliqarpPlusTree("startswith(<s>, [][base=Mann])");
 		map = ppt.getRequestMap().get("query").toString();