Subject	sedimentary rock
Predicate	form
Object	layers
Modality	Modality Occurrences often 4
Polarity	POSITIVE
Plausibility	0.9635
Neighborhood Sigma	0.9660
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source sedimentary rocks often form layers 4 Google Autocomplete, Answers.com Questions sedimentary rocks form layers 4 Google Autocomplete, Answers.com Questions