rdfs:member
http://hosi.org/ts/When/BasicTypes/M17n
保大
ts:dbpedia
http://ja.dbpedia.org/resource/保大_(阮朝)
ts:label
保大
ts:reference
https://ja.wikipedia.org/wiki/%E4%BF%9D%E5%A4%A7_%28%E9%98%AE%E6%9C%9D%29