Assertion: spanish flu | /r/HasProperty | deadly influenza pandemic
Facets:
value: unusually
type: DEGREE
Source sentences:
text: The Spanish flu, also known as the 1918 flu pandemic, was an unusually deadly influenza pandemic caused by the H1N1 influenza A virus.
text: The Spanish flu, also referred to as the influenza pandemic of 1918, is one of the deadliest epidemics in recent history.
text: It was one of the deadliest pandemics in human history.