メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.729684951612 35.4379201868327, 136.729676741957 35.4383643930618, 136.72849046488 35.4381771861568, 136.727533372223 35.4380216429815, 136.727378657741 35.4376505007671, 136.727197402524 35.4372316237967, 136.727614879997 35.4371774045729, 136.729695874546 35.437506831367, 136.729684951612 35.4379201868327)) ^^http://www.opengis.net/ont/geosparql#wktLiteral