Assertion: police dog | /r/CapableOf | serve purpose
Facets:
value: usually
type: DEGREE
value: in the former case
type: TEMPORAL
Source sentences:
text: In the former case, police dogs usually serve all purposes deemed necessary, most commonly suspect apprehension and narcotics detection, and teams are often on call; in the latter case, however, individual dogs usually serve individual purposes in which each particular animal is specialized, and teams usually serve scheduled shifts.