Assertion: phosgene | /r/ObjectUse | used as fumigant
Facets:
Source sentences:
text: Both have been used as chemical weapons but phosgene is an important precursor in the manufacture of plastics and chloropicrin is used as a fumigant.
text: Both have been used as chemical weapons but phosgene is an important precursor in the manufacture of plastics and chloropicrin is used as a fumigant.