Assertion: bipolar disorder's episode | /r/CapableOf | occur within a 12-month period
Facets:
Source sentences:
text: When four or more episodes of illness occur within a 12-month period, a person is said to have rapid-cycling bipolar disorder.
text: When four or more episodes of bipolar illness occur within a 12-month period, a person is said to have rapid-cycling bipolar disorder.