Assertion: methanol | /r/HasProperty | served as a subject of research
Facets:
Source sentences:
text: Ethanol use as a vehicle fuel for internal-combustion engines, whereas methanol, served mainly as a subject of research and used as a motor fuel.
text: Ethanol use as a vehicle fuel for internal-combustion engines, whereas methanol, served mainly as a subject of research and used as a motor fuel.