Assertion: valley fog | /r/CapableOf | hang in winter
Facets:
value: stubbornly
type: MANNER
value: california's central valley
type: LOCATION
Source sentences:
text: In winter, valley fog can hang stubbornly in lower elevations of the Great Basin, as well as California's Central Valley, as the combination of warmer air aloft moves over an area just soaked by the storm.