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-rw-r--r--decoder/ff_wordset.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/decoder/ff_wordset.h b/decoder/ff_wordset.h
index 00e1145b..643097ef 100644
--- a/decoder/ff_wordset.h
+++ b/decoder/ff_wordset.h
@@ -32,6 +32,7 @@ class WordSet : public FeatureFunction {
~WordSet() {
}
+ Features features() const { return single_feature(fid_); }
protected:
virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,