Subject	mercury
Predicate	be used
Object	purify
Modality	Modality Occurrences some[subj// was] 1
Polarity	POSITIVE
Plausibility	0.0016
Neighborhood Sigma	0.0016
Local Sigma	0.0018
Example Sentences	Sentence Occurrences Source / was mercury is used to purify other metals 1 Reddit Questions