Subject	rain forest
Predicate	usually have
Object	poor soils
Modality	Modality Occurrences some[subj/tropical] 1
Polarity	POSITIVE
Plausibility	0.0124
Neighborhood Sigma	0.0129
Local Sigma	0.8112
Example Sentences	Sentence Occurrences Source tropical rain forests usually have poor soils 1 Google Autocomplete