Assertion: pigeon | /r/ObjectUse | used to great effect
Facets:
value: in 1850
type: TEMPORAL
value: during wartime
type: TEMPORAL
value: in modern times
type: TEMPORAL
Source sentences:
text: In modern times the pigeon has been used to great effect during wartime.
text: Later, in 1850, pigeons were used to great effect as commercial messengers by the world famous Reuters News Agency.