Assertion: dust storm | /r/AtLocation | april
Facets:
value: most often
type: DEGREE
value: historically
type: TEMPORAL
Source sentences:
text: Dust Storm over Eastern Australia, 23/10/2002 [Satellite image originally processed by the Bureau of Meteorology from the polar orbiting satellite Feng Yun-1D operated by the China Meteorological Administration] Major dust storms in the past which have effected Sydney have occurred in: April 1994.
text: Although the Gobi has long ranked as one of the world’s top dust-producing regions, its dust storms have historically occurred most often in March and April, according to the University Corporation for Atmospheric Research.