Subject	seismic wave
Predicate	reveal
Object	structure of earth
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9162
Neighborhood Sigma	0.9225
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source seismic waves reveal the structure of earth 14 Google Autocomplete, Answers.com Questions seismic waves reveal the structure of the earth 2 Google Autocomplete