Subject	cell differentiation
Predicate	has_property
Object	necessary
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8554
Neighborhood Sigma	0.8993
Local Sigma	0.8554
Example Sentences	Sentence Occurrences Source cell differentiation is necessary for the survival of multicellular organisms 2 Google Autocomplete, Answers.com Questions