メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.738779150506 35.1739087765744, 136.738767960844 35.1741373226968, 136.738741500217 35.1747105965742, 136.738702576951 35.1752642490129, 136.737035356709 35.1752996033915, 136.736928467875 35.174031438165, 136.736874670235 35.1733995022686, 136.737521149918 35.1733585584344, 136.737481018349 35.1726632916312, 136.738863419835 35.1725819210196, 136.738779150506 35.1739087765744)) ^^http://www.opengis.net/ont/geosparql#wktLiteral