メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.681714091181 34.8341167567079, 134.681419717951 34.8342206389113, 134.680827287248 34.8344061558706, 134.680363369727 34.8334565624131, 134.681062918795 34.8332289052066, 134.681793071532 34.832987634543, 134.681900273879 34.8332420655569, 134.681995691129 34.8334965303796, 134.68209311314 34.8339426247665, 134.681959074402 34.8340382996742, 134.681829538231 34.8340833946175, 134.681714091181 34.8341167567079)) ^^http://www.opengis.net/ont/geosparql#wktLiteral