メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.376942976139 38.3148275281997, 140.376737949376 38.3148557289971, 140.374928905402 38.3150908020097, 140.374520226656 38.3151550860072, 140.373151725742 38.3153358273199, 140.370833356833 38.3156440085657, 140.370827532779 38.3155972481323, 140.369832201053 38.3110335972073, 140.370779230459 38.3109423162973, 140.374361533497 38.3105741974945, 140.376030153657 38.3104215052212, 140.376384333338 38.3120943136514, 140.376643614283 38.3134504256973, 140.376942976139 38.3148275281997)) ^^http://www.opengis.net/ont/geosparql#wktLiteral