Assertion: propanol | /r/HasAspect | isomer
Facets:
Source sentences:
text: Since there are three carbon atoms in propanol molecule, it has isomers.
text: Propanol has two isomers:
text: Moreover, another difference between ethanol and propanol is that the ethanol has no isomers, but propanol has isomers.
text: Propanol has two isomers.