rdfs:member
http://hosi.org/ts/When/BasicTypes/M17n
天平
ts:dbpedia
http://ja.dbpedia.org/resource/天平_(東魏)
ts:label
天平
ts:reference
https://ja.wikipedia.org/wiki/%E5%A4%A9%E5%B9%B3_%28%E6%9D%B1%E9%AD%8F%29