メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.487664843494 39.1694092181703, 140.487893713358 39.1698808647704, 140.488039452765 39.1701285333231, 140.4873095093 39.1703611526868, 140.485348955107 39.1709858404926, 140.485085966675 39.1704727757115, 140.484862051058 39.1700359053173, 140.484613107201 39.1695501884218, 140.484914602255 39.1694542487842, 140.485928606608 39.1691316320787, 140.486091437603 39.1690805301387, 140.48654626916 39.1689376780311, 140.487019774756 39.1687888970405, 140.487405875915 39.1686676540465, 140.487415695052 39.1687261672165, 140.48745634155 39.168887312078, 140.487524887955 39.1690745088665, 140.487650319382 39.1693793349729, 140.487664843494 39.1694092181703)) ^^http://www.opengis.net/ont/geosparql#wktLiteral