Assertion: twilight | /r/CapableOf | last for example
Facets:
value: in alaska
type: LOCATION
value: during some periods of the year
type: TEMPORAL
value: several hours
type: TEMPORAL
Source sentences:
text: Twilight tends to be the longest in the poles, and the shortest around the equator; in Alaska, for example, twilight can last several hours during some periods of the year, while in parts of Africa, light levels go from full daylight to night in 20 minutes.