メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.782484051741 35.4453001748869, 136.781102402466 35.4453673035844, 136.781088505748 35.4451680032486, 136.780666723684 35.4451933871084, 136.780689500502 35.4453975741448, 136.780140092675 35.4454152602679, 136.780137750502 35.4452840581561, 136.780229760477 35.4452892116327, 136.780230096912 35.4452187194705, 136.780167716858 35.4452258120624, 136.780150831901 35.4450313590172, 136.781076103988 35.4449626503134, 136.782442521425 35.4448761065538, 136.782484051741 35.4453001748869)) ^^http://www.opengis.net/ont/geosparql#wktLiteral