rdfs:comment , etc) SHOULD be included unless unknown. If the, time (or parts of time) is unknown, use 00:00:00Z,. If the day/month is unknown, use 01-01, for @en
rdfs:comment ) SHOULD be included unless unknown. If the time (or, parts of time) is unknown, use 00:00:00Z. If the, day/month is unknown, use 01-01, for instance, if @en