Subject	zebra mussel
Predicate	has_property
Object	invasive species
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9482
Neighborhood Sigma	0.9695
Local Sigma	0.9556
Example Sentences	Sentence Occurrences Source zebra mussels are invasive species 8 Google Autocomplete, Bing Autocomplete zebra mussels are an invasive species 5 Google Autocomplete zebra mussels is an invasive species 5 Google Autocomplete the zebra mussel is an invasive species 9 Google Autocomplete