Subject	nuclear reactor
Predicate	require
Object	fissionable isotope
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8139
Neighborhood Sigma	0.8185
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source nuclear reactors require a fissionable isotope 4 Google Autocomplete, Answers.com Questions