Assertion: crude oil's hydrocarbon | /r/HasProperty | alkane
Facets:
value: mostly
type: DEGREE
Source sentences:
text: The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons, while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium.
text: The hydrocarbons primarily are alkanes, cycloalkanes, and aromatic hydrocarbons.
text: Moreover, the most prolific hydrocarbons found in the chemistry of petroleum are alkanes.