Subject	rocks
Predicate	has_property
Object	in the mantle
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9003
Neighborhood Sigma	0.9003
Local Sigma	0.9408
Example Sentences	Sentence Occurrences Source rocks have to be in the mantle to change to a metamorphic rock 1 Answers.com Questions