Subject	some metal
Predicate	can be extracted
Object	by electrolysis
Modality	Modality Occurrences only 3
Polarity	POSITIVE
Plausibility	0.4795
Neighborhood Sigma	0.5007
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source some metals only can be extracted by electrolysis 3 Google Autocomplete