Assertion: calendar | /r/CapableOf | add 53rd week
Facets:
value: to every 5th or 6th year
type: TEMPORAL
value: normally
type: DEGREE
Source sentences:
text: Note that this calendar will normally need to add a 53rd week to every 5th or 6th year, which might be added to December or might not be, depending on how the organization uses those dates.