Subject	plant root
Predicate	can cause
Object	weathering
Modality	Modality Occurrences TBC[mechanical weathering] 1
Polarity	POSITIVE
Plausibility	0.0028
Neighborhood Sigma	0.0028
Local Sigma	0.0029
Example Sentences	Sentence Occurrences Source plant roots can cause weathering 1 Google Autocomplete plant roots can cause mechanical weathering 1 Google Autocomplete