Assertion: vinyl chloride | /r/HasProperty | manufactured substance
Facets:
Source sentences:
text: It is a manufactured substance that does not occur naturally.
text: It is a manufactured substance that does not occur naturally.
text: Vinyl chloride is a manufactured substance that does not occur naturally; however, it can be formed in the environment when other manufactured substances, such as trichloroethylene, trichloroethane, and tetrachloroethylene, are broken down by certain microorganisms.