メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.868223240112 35.1555926591708, 136.868282287552 35.1556255520001, 136.868523167331 35.1557412890363, 136.868552857396 35.1563835694478, 136.868562666773 35.156668815347, 136.868560660906 35.15696656855, 136.867321369538 35.1569868258771, 136.867311246888 35.1567065094493, 136.867298111616 35.1564351287765, 136.867292081157 35.1561670757253, 136.867295018589 35.1561670126627, 136.867291147979 35.1558831193958, 136.867316509648 35.1558824076432, 136.867302654167 35.1556029969291, 136.867279698258 35.1553320850804, 136.86727400297 35.1551543184918, 136.868223240112 35.1555926591708)) ^^http://www.opengis.net/ont/geosparql#wktLiteral