Assertion: hydrogen sulfide | /r/ObjectUse | used by british army
Facets:
Source sentences:
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.
text: Hydrogen sulfide was used by the British Army as a chemical weapon during World War I.