Index: branches/apertium-tagger/experiments/run_experiment.py
===================================================================
--- branches/apertium-tagger/experiments/run_experiment.py	(revision 70233)
+++ branches/apertium-tagger/experiments/run_experiment.py	(revision 70234)
@@ -154,8 +154,12 @@
             # ends up as an <abbr><sent> multiword
             ('./' in line and '<sent>' not in line))
 
+def invalidate_hbs(line):
+    return line.startswith('+')
+
 LANGUAGE_INVALIDATOR_MAP = {
-    'por': invalidate_por
+    'por': invalidate_por,
+    'hbs': invalidate_hbs,
 }