メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.099920926531 37.8901417811307, 139.101072397729 37.8905109700972, 139.100930123309 37.890802557308, 139.100903824704 37.8908563313836, 139.100737261104 37.8911975996086, 139.100663039873 37.8913494640918, 139.099171483617 37.8915423271164, 139.098353256384 37.8916479889848, 139.098530316377 37.8912799211467, 139.098651117561 37.8908910204013, 139.098733237851 37.8905134382518, 139.098747881046 37.8904460696672, 139.098833056198 37.8900291924637, 139.098870769901 37.8898275363005, 139.099920926531 37.8901417811307)) ^^http://www.opengis.net/ont/geosparql#wktLiteral