メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.02938561726 43.1334862636571, 145.029924436267 43.1331674718494, 145.031260449791 43.13432730815, 145.032576337795 43.1354868450286, 145.031349270088 43.1362345529474, 145.031213262023 43.1361236567247, 145.03110251135 43.1360191778958, 145.031006914101 43.1359143313304, 145.030925305952 43.1357833350173, 145.030463722982 43.1350063112799, 145.030326572661 43.1348786345698, 145.029046538436 43.1336869080756, 145.02938561726 43.1334862636571)) ^^http://www.opengis.net/ont/geosparql#wktLiteral