Subject wetland
Predicate purify
Object water
Modality
Modality Occurrences
Polarity POSITIVE
Plausibility 0.9835
Neighborhood Sigma 0.9931
Local Sigma 1.0000
Example Sentences
Sentence Occurrences Source
wetlands purify water 6 Google Autocomplete, Answers.com Questions
wetlands filter and purify water 1 Google Autocomplete