メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.186672410838 35.0858085566723, 137.186621760402 35.0858156079162, 137.184878860035 35.0859954634032, 137.184359024698 35.0860484311586, 137.184305471522 35.085832588393, 137.18427419832 35.085667729023, 137.184276251927 35.0855036396159, 137.184355654355 35.0851215034396, 137.184371526399 35.0850235402019, 137.184933425473 35.0850474700841, 137.185473850519 35.0850836556999, 137.186650678349 35.0851078339589, 137.187068663692 35.085107764278, 137.187116417157 35.0857793970625, 137.186672410838 35.0858085566723)) ^^http://www.opengis.net/ont/geosparql#wktLiteral