Assertion: policeman | /r/HasProperty | alert
Facets:
value: throughout their shifts
type: TEMPORAL
Source sentences:
text: Mental and physical stamina: Officers and their K-9 companions must be alert throughout their shifts and often must be on their feet for long periods of time.
text: Officers and their K-9 companions must be alert throughout their shifts and often must be on their feet for long periods of time.