Subject	metal
Predicate	be extracted from
Object	rock
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9227
Neighborhood Sigma	0.9227
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source metals are extracted from rocks 4 Google Autocomplete metal is extracted from rock 2 Google Autocomplete