Assertion: pigeon | /r/CapableOf | form pair bonds
Facets:
value: to breed
type: PURPOSE
value: unlike other poultry
type: OTHER
Source sentences:
text: Pigeons, unlike other poultry, form pair bonds to breed, and squabs must be brooded and fed by both parents until they are four weeks old; a pair of pigeons may produce 15 squabs per year.