Assertion: vegetable oil's use | /r/HasProperty | prior
Facets:
Source sentences:
text: The vegetable oil may be partially cured as a result of being waste vegetable oil which has already undergone some form of partial curing as a result of its prior use, or, more preferably by taking clean or virgin vegetable oil and then using any convenient means to partially cure the oil prior to mixing it with the aggregate, as in the first aspect of the present invention.