Subject	poison gas
Predicate	be
Object	the deadliest weapon in world war 1
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.1457
Neighborhood Sigma	0.1492
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source poison gas was the deadliest weapon in world war 1 1 Answers.com Questions