Assertion: space heater | /r/HasProperty | leading cause of house fires
Facets:
Source sentences:
text: But according to a warning from the National Fire Protection Association, space heaters are a leading cause of house fires.
text: One official told NBC News that space heaters are a leading cause of fires, and they can be deadly.
text: According to the National Fire Protection Association, space heaters are the leading cause of house fires.