メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.213395831798 34.7053120053222, 135.213339673947 34.705420588951, 135.213063958096 34.7059274107864, 135.212273496193 34.7057595823335, 135.211562148505 34.7055889245467, 135.211760703421 34.7050105438312, 135.211856149083 34.7047461717631, 135.21351621395 34.7050835111699, 135.213395831798 34.7053120053222)) ^^http://www.opengis.net/ont/geosparql#wktLiteral