メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.876450983305 43.8244612327321, 143.877400573997 43.8245282761665, 143.877822918276 43.8245581018881, 143.877702567677 43.8255181306078, 143.877610310594 43.826375567166, 143.877597838565 43.8264527276531, 143.877473168303 43.827396888494, 143.876000028713 43.8272957598829, 143.874279510143 43.8271733087648, 143.874365988359 43.8264697816035, 143.874394573928 43.8262381820204, 143.874479975978 43.8253412553836, 143.874484276831 43.8252958036596, 143.87458206459 43.8243542956716, 143.874584793526 43.8243294351162, 143.876050047764 43.8244329243372, 143.876450983305 43.8244612327321)) ^^http://www.opengis.net/ont/geosparql#wktLiteral