メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.857574178537 35.4176289926788, 136.858890265181 35.4176938673785, 136.859482935324 35.4176995666048, 136.859505691423 35.4181577785176, 136.857606620488 35.4182289158367, 136.856381720139 35.4182803149567, 136.856189254774 35.4182872493801, 136.856049322318 35.418402027491, 136.855797889148 35.418346381678, 136.855556238887 35.4183027326855, 136.855136941845 35.4183271435593, 136.855135717469 35.4175663526634, 136.855137990921 35.4175120637398, 136.856305344324 35.4175637670898, 136.856607826035 35.4175816562557, 136.857574178537 35.4176289926788)) ^^http://www.opengis.net/ont/geosparql#wktLiteral