Subject	ph meter
Predicate	need
Object	calibrated
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.0546
Neighborhood Sigma	0.0568
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source ph meters need to be calibrated 3 Google Autocomplete a ph meter need to be calibrated 5 Google Autocomplete ph meter need to be calibrated 3 Google Autocomplete