メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.180746833263 34.2367589068998, 135.180673679031 34.2367467255612, 135.180695888977 34.2361419812372, 135.181820676465 34.2361665388942, 135.182442426651 34.2361706872619, 135.182447538688 34.2365640276195, 135.182336718959 34.2365266625592, 135.181561645204 34.236513038197, 135.181422278355 34.2365426760352, 135.180987265106 34.2366790901528, 135.180746833263 34.2367589068998)) ^^http://www.opengis.net/ont/geosparql#wktLiteral