rdfs:member
http://hosi.org/ts/When/BasicTypes/M17n
rdfs:label
オルドビス紀
Ordovician
ts:dbpedia
http://ja.dbpedia.org/resource/オルドビス紀
http://dbpedia.org/resource/Ordovician
ts:label
Ordovician
ts:reference
https://ja.wikipedia.org/wiki/%E3%82%AA%E3%83%AB%E3%83%89%E3%83%93%E3%82%B9%E7%B4%80
https://en.wikipedia.org/wiki/Ordovician