メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.624507145238 34.9399507209486, 136.623499769334 34.9398894665716, 136.623296677661 34.9398986757897, 136.622673372471 34.9399198923637, 136.622655171469 34.9396498238733, 136.622552689055 34.938705066351, 136.623617861886 34.9387775804573, 136.624005777552 34.9388436976143, 136.624625581536 34.9388863689505, 136.624651589864 34.9387689730063, 136.62645243765 34.9389328360726, 136.626401264598 34.9399378289083, 136.624527366134 34.939774970525, 136.624507145238 34.9399507209486)) ^^http://www.opengis.net/ont/geosparql#wktLiteral