Subject	water heater
Predicate	need
Object	expansion tank
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9447
Neighborhood Sigma	0.9585
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source water heaters need expansion tanks 4 Google Autocomplete a water heater need an expansion tank 6 Google Autocomplete water heater need expansion tank 4 Google Autocomplete