Assertion: drought | /r/AtLocation | western canada
Facets:
value: with multi-year episodes
type: OTHER
value: during the past two centuries
type: TEMPORAL
Source sentences:
text: During the past two centuries, at least 40 droughts have occurred in western Canada with multi-year episodes being observed in the 1890s, 1910s, 1930s, 1960s, 1980s, and the early 2000s.