Assertion: butane | /r/HasProperty | hydrocarbon
Facets:
Source sentences:
text: Butane is a hydrocarbon that can occur in several forms known as isomers.
text: Butane is a hydrocarbon that can occur in several forms as isomers.
text: Butane is a hydrocarbon, made up of gas and water vapor.
text: Butane is a hydrocarbon, a molecule made up of carbon and hydrogen.