rdfs:member
http://hosi.org/ts/When/TM/CalDate
day:Christmas
christmas(-28)
day:Easter
easter(231)
day:Moveable_feast
Advent Sunday
day:Week
http://hosi.org/When/Coordinates/Common::Week::Sunday
ts:coordinate
27
ts:frame
http://hosi.org/When/CalendarTypes/Julian
ts:sdn
1867123