Subject	chromatography
Predicate	be useful to
Object	expert
Modality	Modality Occurrences TBC[forensic expert] 1 TBC[forensic experts] 1
Polarity	POSITIVE
Plausibility	0.0016
Neighborhood Sigma	0.0018
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source chromatography is useful to a forensic expert 1 Answers.com Questions chromatography is useful to forensic experts 1 Answers.com Questions