Subject	sedimentary rock
Predicate	be weaker than
Object	igneous
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.0019
Neighborhood Sigma	0.0019
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source sedimentary rocks is weaker than igneous and metamorphic rocks 1 Answers.com Questions