Subject	drilling rig
Predicate	has_property
Object	effective
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.6786
Neighborhood Sigma	0.9578
Local Sigma	0.6786
Example Sentences	Sentence Occurrences Source drilling rigs are effective 1 Google Autocomplete drilling rig is effective 1 Google Autocomplete