Calendar User Type,Status,Reference
INDIVIDUAL,Current,"[RFC5545, Section 3.2.3]"
GROUP,Current,"[RFC5545, Section 3.2.3]"
RESOURCE,Current,"[RFC5545, Section 3.2.3]"
ROOM,Current,"[RFC5545, Section 3.2.3]"
UNKNOWN,Current,"[RFC5545, Section 3.2.3]"