メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.857916770144 35.2412858558252, 136.858535124699 35.2412682828795, 136.860146553121 35.241190981241, 136.860238434848 35.2420284109228, 136.860390293429 35.2430792351252, 136.860315534131 35.2430827076847, 136.859187901307 35.2430808927153, 136.857825999989 35.2430785378736, 136.856536632705 35.2430591011147, 136.856552196065 35.2422555366816, 136.856552197683 35.2420008145487, 136.856565306785 35.2418376069821, 136.856575802491 35.2413510767807, 136.857376835069 35.2413183452784, 136.857916770144 35.2412858558252)) ^^http://www.opengis.net/ont/geosparql#wktLiteral