メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.681760234676 35.4336630723749, 136.680310013302 35.4330250963043, 136.68033582501 35.4329678441244, 136.679863005628 35.4326791964577, 136.68026070146 35.4322245919274, 136.680433910891 35.4320219902878, 136.680510875373 35.4319284315356, 136.680545442232 35.4318887485512, 136.680579837512 35.4318492063757, 136.680695369918 35.4317089039611, 136.680791680389 35.4315815514718, 136.680886359062 35.4314607064242, 136.681018447686 35.4312136104253, 136.681504357088 35.431442343589, 136.681396742406 35.4315970094899, 136.682772677357 35.4321369314113, 136.682663250014 35.4322929289768, 136.682507883253 35.4325340543327, 136.682296335503 35.4328466051211, 136.681760234676 35.4336630723749)) ^^http://www.opengis.net/ont/geosparql#wktLiteral