Assertion: ethane | /r/ObjectUse | used as a petrochemical feedstock
Facets:
value: primarily
type: DEGREE
Source sentences:
text: Methane (CH 4 ) is the main constituent of natural gas, while ethane (C 2 H 6 ) is used as a petrochemical feedstock.
text: – Ethane is primarily used as a petrochemical feedstock.