Assertion: dust storm | /r/HasProperty | infrequent
Facets:
value: in prolonged dry periods
type: TEMPORAL
value: during summer
type: TEMPORAL
value: during the australian spring
type: TEMPORAL
Source sentences:
text: Full dust storms like this one are not surprising, but are infrequent," NASA said in a status report.
text: But although dust storms are frequent during the Australian spring and summer, and Australian dust has a high iron content, witnessing the oceans bloom has proven elusive.
text: In prolonged dry periods, dust storms are a frequent occurrence, whilst in the wetter periods dust storms are very uncommon due to the increase in vegetation and soil moisture binding dust particles to the surface.
text: Full dust storms like this one are not surprising, but are infrequent.