Subject	smoking
Predicate	cause
Object	birth defect
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8985
Neighborhood Sigma	0.8985
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source smoking cause birth defects 1 Google Autocomplete smoking cause a birth defect 2 Answers.com Questions