Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/utils/MostSimilarTaskDeterminer.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/utils/MostSimilarTaskDeterminer.java	(revision 1974)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/utils/MostSimilarTaskDeterminer.java	(revision 1975)
@@ -682,4 +682,10 @@
                 }
                 
+                if (TaskTreeUtils.isChild(traversal1.getTask(), traversal2.getTask()) ||
+                    TaskTreeUtils.isChild(traversal2.getTask(), traversal1.getTask()))
+                {
+                    return false;
+                }
+                
                 return true;
             }