Assertion: helicopter's flight | /r/CapableOf | ground its helicopters
Facets:
value: over the weekend
type: TEMPORAL
value: due to poor visibility
type: CAUSE
Source sentences:
text: Weather reports indicate that conditions were foggy; it’s unclear whether the fog contributed to the crash, but the Los Angeles International Airport had delayed flights and the Los Angeles Police Department grounded its helicopters over the weekend due to poor visibility.