メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.625212261254 35.3588153156752, 136.625246528474 35.3591358209239, 136.624973621215 35.3591260061608, 136.62497893299 35.3588195518913, 136.624112994835 35.358813482697, 136.624086237044 35.3585534331255, 136.624083223392 35.3585285606188, 136.624054949621 35.3582958285431, 136.625149834346 35.3582970084917, 136.625187540685 35.3585843601384, 136.625212261254 35.3588153156752)) ^^http://www.opengis.net/ont/geosparql#wktLiteral