Subject zebra mussel
Predicate cause
Object problems
Modality
Modality Occurrences
Polarity POSITIVE
Plausibility 0.9342
Neighborhood Sigma 0.9552
Local Sigma 1.0000
Example Sentences
Sentence Occurrences Source
zebra mussels are causing problems 8 Google Autocomplete
zebra mussels cause problems 5 Google Autocomplete