Assertion: pigeon | /r/CapableOf | fly through poison gas
Facets:
Source sentences:
text: In the First World War mobile pigeon lofts were set up behind the trenches from which pigeons often had to fly through enemy fire and poison gas to get their messages home.
text: Mobile pigeon lofts were set up behind the trenches in the First World War from which pigeons often had to fly through enemy fire and poison gas to get their messages home.