Assertion: epilepsy's seizure | /r/CapableOf | vary in frequency
Facets:
value: from less than one
type: OTHER
value: from less than 1 per year
type: TEMPORAL
Source sentences:
text: Seizures can also vary in frequency, from less than 1 per year to several per day.
text: Seizures can also vary in frequency, from less than one a year to several per day4.