Subject	the storm
Predicate	contribute
Object	to a single effect in the fall of the house of usher
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.3369
Neighborhood Sigma	0.3580
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source the storm contribute to a single effect in the fall of the house of usher 1 Answers.com Questions