メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.16134731812 34.6882292166558, 135.161302601127 34.6883962945591, 135.161221149183 34.6887101127201, 135.16104125366 34.6890020634685, 135.160780718592 34.6888686134364, 135.16065991048 34.6887928091079, 135.160442759521 34.6886320190118, 135.160384859466 34.6885715626969, 135.160351491469 34.6885086859353, 135.160131390543 34.6877777297253, 135.160679106566 34.6879813473613, 135.16134731812 34.6882292166558)) ^^http://www.opengis.net/ont/geosparql#wktLiteral