メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.770141721476 40.183948490308, 141.769235329434 40.1842171517512, 141.768103788961 40.1845189943848, 141.76759836741 40.184651989312, 141.767269681538 40.1847545286292, 141.767137125661 40.1848090256735, 141.766809604926 40.1849029510971, 141.766798150005 40.1846633663402, 141.766803400664 40.1842237389567, 141.766827286752 40.183644606705, 141.766777447528 40.1832887375634, 141.766736776252 40.1830592204569, 141.766669446332 40.1827925555932, 141.766746404414 40.1828048637235, 141.767370317494 40.1829371378194, 141.767790893645 40.1830262815612, 141.769076195856 40.1829196200784, 141.769611498649 40.1828922906738, 141.769807928282 40.1828797572255, 141.769818756163 40.1835463718531, 141.769898423557 40.1837688511972, 141.770141721476 40.183948490308)) ^^http://www.opengis.net/ont/geosparql#wktLiteral