メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.388571528595 36.1420679414641, 139.388648029935 36.1422321904512, 139.388699746208 36.1424123059092, 139.38877367078 36.1426409685044, 139.388777911524 36.1426663967229, 139.388119653694 36.1427435140598, 139.388007893997 36.1427428126766, 139.38797172882 36.1427601170764, 139.387049197767 36.142896259802, 139.386010293487 36.1432010367648, 139.385897964615 36.1428810503325, 139.385747065212 36.1423151108113, 139.386813400551 36.1419927777843, 139.387556460098 36.1418010390861, 139.388383457703 36.1416317585682, 139.388571528595 36.1420679414641)) ^^http://www.opengis.net/ont/geosparql#wktLiteral