メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.854737380681 38.8887775994645, 139.854273239809 38.8881090469746, 139.853903895131 38.8875479834603, 139.853092435806 38.8863231935923, 139.855445933326 38.8853600727727, 139.857384983021 38.8845814937277, 139.858361225928 38.8841870035564, 139.858735443893 38.884827761849, 139.859100062689 38.8854729445004, 139.859440511468 38.8860684473783, 139.859610346693 38.8863916388154, 139.859804932683 38.8867555043002, 139.858653413823 38.8872239903285, 139.857080586135 38.8878472278357, 139.854737380681 38.8887775994645)) ^^http://www.opengis.net/ont/geosparql#wktLiteral