Subject	si unit
Predicate	has_property
Object	helpful for describing objects
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.7816
Neighborhood Sigma	0.8232
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source si units are helpful for describing objects 2 Google Autocomplete, Answers.com Questions