Subject	invasive species
Predicate	affect
Object	ecosystem
Modality	Modality Occurrences often 4 TBC[local ecosystems] 1
Polarity	POSITIVE
Plausibility	0.9462
Neighborhood Sigma	1.0000
Local Sigma	0.9523
Example Sentences	Sentence Occurrences Source invasive species often affect ecosystems 4 Google Autocomplete invasive species affect ecosystems 6 Google Autocomplete invasive species affect an ecosystem 4 Google Autocomplete, Answers.com Questions invasive species affect the ecosystem 4 Google Autocomplete invasive species affect local ecosystems 1 Google Autocomplete