メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.53235528229 35.878259177448, 139.532358228483 35.8782292220438, 139.532313929637 35.8779664414441, 139.532546466815 35.8779254166518, 139.532774155403 35.877891034664, 139.532826683441 35.8782375348493, 139.532699881311 35.878289412984, 139.532583753001 35.8783041028737, 139.532580520933 35.8783238473407, 139.53236622908 35.8783617389051, 139.53235528229 35.878259177448)) ^^http://www.opengis.net/ont/geosparql#wktLiteral