Subject	molecule
Predicate	be
Object	best 30 liters of methane
Modality	Modality Occurrences some[subj/many] 1
Polarity	POSITIVE
Plausibility	0.0002
Neighborhood Sigma	0.0002
Local Sigma	0.8269
Example Sentences	Sentence Occurrences Source many molecules are best 30 liters of methane (ch4) 1 Quora Questions