Subject	rough er
Predicate	differ
Object	er in structure
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9633
Neighborhood Sigma	0.9996
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source rough er differ from smooth er in structure and function 3 Google Autocomplete, Answers.com Questions