Subject	quagga mussel
Predicate	has_property
Object	invasive species
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.0251
Neighborhood Sigma	0.0340
Local Sigma	0.0253
Example Sentences	Sentence Occurrences Source quagga mussels are invasive species 3 Google Autocomplete quagga mussels are an invasive species 2 Google Autocomplete