メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.770102220589 35.4325796042929, 136.769690980437 35.4326257311137, 136.769357325666 35.4326325326044, 136.769329821588 35.4323200255664, 136.769283236494 35.431959959625, 136.770001251766 35.4319741619722, 136.770081050156 35.4322209243945, 136.770092480872 35.4323197589381, 136.770102467687 35.4323500720179, 136.770282570493 35.4323406661312, 136.770302945442 35.4325723340414, 136.770102220589 35.4325796042929)) ^^http://www.opengis.net/ont/geosparql#wktLiteral