メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.17359547821 43.5330950287437, 142.172959376965 43.5331568462451, 142.172136143861 43.5332651575773, 142.171689702779 43.5333795876426, 142.171197800933 43.5335231333614, 142.170898420951 43.5335695901763, 142.170465495087 43.5335692985377, 142.170192912268 43.5335613435114, 142.170456635838 43.5321810994748, 142.170706937834 43.5308416673378, 142.171138997955 43.5307907301655, 142.17147408396 43.5307834663588, 142.172236953916 43.5308068287452, 142.173288951391 43.5308994312478, 142.174183842168 43.5309568673024, 142.174018141324 43.5320209156322, 142.173567972046 43.5323770073302, 142.17359547821 43.5330950287437)) ^^http://www.opengis.net/ont/geosparql#wktLiteral