Assertion: silicon | /r/CapableOf | occur as the oxide
Facets:
value: in nature
type: LOCATION
value: usually
type: DEGREE
value: as silicates
type: MANNER
value: chiefly
type: DEGREE
Source sentences:
text: Silicon is not found free in nature, but occurs chiefly as the oxide and as silicates.
text: In nature, Silicon usually occurs as either an oxide or a silicate.