Assertion: chemical weapon | /r/HasProperty | hydrogen cyanide
Facets:
Source sentences:
text: Iraq also used chemical weapons (thought to be hydrogen cyanide, sarin, or sulfur mustard gas) against Iraqi Kurds who were considered unfriendly to the regime of Saddam Hussein.
text: -1988 - Iraq uses chemical weapons (hydrogen cyanide, mustard gas) in its Anfal Campaign against the Kurds, most notably in the Halabja Massacre of 1988.