Subject	human activity
Predicate	affect groundwater water in
Object	watershed
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.0392
Neighborhood Sigma	0.0399
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source human activities affect groundwater and surface water in a watershed 2 Google Autocomplete, Answers.com Questions