Subject	refractive index
Predicate	vary in
Object	graded index fiber
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.4355
Neighborhood Sigma	0.4355
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source refractive index vary in graded index fiber 2 Google Autocomplete a refractive index vary in graded index fibers 1 Google Autocomplete