メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.089029051298 36.6973877240597, 137.089022613652 36.6982622319449, 137.089404048699 36.6983319647792, 137.089311270435 36.6987278689018, 137.089026802765 36.6986883301884, 137.0886822966 36.6986648745788, 137.088545736324 36.698666617921, 137.088085489815 36.6986725171829, 137.088092746459 36.6982524806315, 137.087597318239 36.6982725760947, 137.087614269108 36.6975796534551, 137.087614414883 36.6972342419732, 137.08809364699 36.6971628794981, 137.087982791319 36.6966335685634, 137.088751480629 36.6964950822675, 137.089386489167 36.6963653791018, 137.089536378384 36.6968588083139, 137.089018314451 36.6969840811096, 137.089029051298 36.6973877240597)) ^^http://www.opengis.net/ont/geosparql#wktLiteral