rdfs:member
http://hosi.org/ts/When/BasicTypes/M17n
rdfs:label
第四紀
Quaternary
ts:dbpedia
http://ja.dbpedia.org/resource/第四紀
http://dbpedia.org/resource/Quaternary
ts:label
Quaternary
ts:reference
https://ja.wikipedia.org/wiki/%E7%AC%AC%E5%9B%9B%E7%B4%80
https://en.wikipedia.org/wiki/Quaternary