Subject	sedimentary rock
Predicate	appear in
Object	layers
Modality	Modality Occurrences TBC[horizontal layers] 1 often 1
Polarity	POSITIVE
Plausibility	0.9907
Neighborhood Sigma	0.9932
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source sedimentary rocks appear in layers 4 Google Autocomplete sedimentary rock often appear in horizontal layers 1 Answers.com Questions