Assertion: pigeon's service | /r/CapableOf | use pigeon
Facets:
value: extensively
type: DEGREE
value: during the first great war
type: TEMPORAL
value: with an estimated 21,000 pigeons
type: OTHER
Source sentences:
text: Both the Belgium and French armed services used pigeons extensively during the First Great War, with an estimated 21,000 pigeons losing their lives in active service.