Subject	carbon dioxide
Predicate	affect
Object	rate of photosynthesis
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9499
Neighborhood Sigma	0.9499
Local Sigma	0.9721
Example Sentences	Sentence Occurrences Source carbon dioxide affect the rate of photosynthesis 16 Google Autocomplete, Answers.com Questions