Subject	polar polar molecule
Predicate	cross
Object	cell membranes
Modality	Modality Occurrences some[subj/polar and non polar molecules cross cell membrane] 1
Polarity	POSITIVE
Plausibility	0.0132
Neighborhood Sigma	0.1527
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source polar and non polar molecules cross cell membranes 1 Google Autocomplete