メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.955950977539 40.0120653046384, 139.958795329846 40.0121099135061, 139.95877503981 40.0132810063762, 139.958727963572 40.015128312, 139.958714978579 40.015276047698, 139.958702493324 40.0170732822691, 139.95603143298 40.017043378832, 139.952871580207 40.0170334157836, 139.952723300724 40.0170227739788, 139.952762066009 40.0150502323571, 139.952763386513 40.0147750574591, 139.952776488419 40.0120728240988, 139.952821956166 40.0120730841787, 139.955950977539 40.0120653046384)) ^^http://www.opengis.net/ont/geosparql#wktLiteral