メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.997107672331 37.8675102924416, 138.999173553956 37.8678080961964, 138.999080074803 37.8682152097277, 139.000517161426 37.8684398950798, 139.000467352642 37.8686849291019, 139.000402541022 37.8690037943017, 139.000314718596 37.8693269805588, 139.00028248692 37.8694660710728, 139.000231573969 37.8696464887857, 139.000165148492 37.8699829574083, 139.000086807845 37.8703099039377, 139.000050067444 37.8704791405921, 138.999201317495 37.8703662905999, 138.998860846755 37.8704503649346, 138.998794766252 37.8704882314031, 138.998548842491 37.8705492392502, 138.998345595195 37.8706178122045, 138.998198850187 37.8706371521929, 138.997957277636 37.8706381675234, 138.997891206128 37.8706444999197, 138.997711102304 37.870661726927, 138.997083997064 37.8709812621002, 138.996967466038 37.8709441607256, 138.996998045631 37.870509999966, 138.997021000429 37.8701838508454, 138.997032944971 37.8698446544092, 138.997037738676 37.8694984494511, 138.997049905627 37.8692525908342, 138.997054442192 37.8691604971254, 138.997071245156 37.8688374687683, 138.997080004336 37.8685868400272, 138.99708317215 37.8684957377584, 138.997087531801 37.8681710730541, 138.997091077366 37.8679042749168, 138.997107672331 37.8675102924416)) ^^http://www.opengis.net/ont/geosparql#wktLiteral