Assertion: kitty's cat | /r/AtLocation | exchange
Facets:
value: hard
type: MANNER
value: to keep food storage facilities
type: PURPOSE
value: for room
type: PURPOSE
value: for board
type: PURPOSE
value: to keep barns
type: PURPOSE
Source sentences:
text: In exchange for room and board, the cats worked hard to keep barns and food storage facilities free from rats and other pests (and, thereby, keeping their human families free from disease).