Assertion: lifeguard | /r/CapableOf | perform patron surveillance
Facets:
value: from a water-level standing
type: MANNER
value: from an elevated stand
type: LOCATION
value: from sitting position
type: LOCATION
Source sentences:
text: While performing patron surveillance (usually from an elevated stand or a water-level standing or sitting position) lifeguards watch for and recognize struggling or drowning swimmers, and swimmers with sudden medical conditions such as a stroke, heart attack, asthma, diabetes, or seizures.