メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.373904985572 34.8164620936589, 137.373586931783 34.817048477821, 137.372802715028 34.8184940582589, 137.371816608073 34.818098625337, 137.371341575372 34.8177565584628, 137.371128452081 34.8175715383314, 137.370918859133 34.8173290404526, 137.37075953163 34.8171498462334, 137.36997630866 34.8162248343864, 137.370534144377 34.8159426131829, 137.371029746709 34.81570599113, 137.37133111052 34.8155049045305, 137.372270576151 34.8158460530075, 137.373904985572 34.8164620936589)) ^^http://www.opengis.net/ont/geosparql#wktLiteral