メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.120896522312 36.0143106475659, 136.121440168354 36.0151944738379, 136.119699879755 36.0158827490688, 136.11899630911 36.0156137923962, 136.118794593802 36.015491724839, 136.118606388936 36.0152537154425, 136.118534395872 36.015027802471, 136.118384461965 36.0145756668398, 136.119861219567 36.0139967171848, 136.119667300067 36.0136898822805, 136.119650460918 36.0135581532779, 136.119679276072 36.0133554489344, 136.11971646734 36.0131898952563, 136.119770354896 36.0130614766361, 136.119911323385 36.0127471816681, 136.120896522312 36.0143106475659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral