Assertion: carbon | /r/HasProperty | obtained
Facets:
value: from coal deposits
type: LOCATION
value: mostly
type: DEGREE
value: most commonly
type: DEGREE
Source sentences:
text: Carbon is most commonly obtained from coal deposits, although it usually must be processed into a form suitable for commercial use.
text: It is mostly obtained from coal deposits, but it has to be further processed before it is considered suitable for commercial use.