メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.396525420641 43.8143853392419, 142.39609972289 43.8147037165232, 142.39604188072 43.814757761119, 142.395702922917 43.8149890714707, 142.395578954094 43.8150941645017, 142.395308223315 43.8152849179463, 142.395109850764 43.8154380820573, 142.394915547896 43.8155672592819, 142.394605566133 43.8157925359146, 142.39451873006 43.8158436101148, 142.39407851178 43.8161604840613, 142.392875602925 43.8152774732698, 142.392456702294 43.814990134115, 142.392884522453 43.8146822828395, 142.393425987661 43.8142918208915, 142.393678103929 43.814102606253, 142.393932309911 43.8139238676319, 142.394397296438 43.8135859740724, 142.394494459909 43.8135303858555, 142.394713479182 43.8133591969563, 142.394920148768 43.8132120191974, 142.395056993796 43.8132957925775, 142.396525420641 43.8143853392419)) ^^http://www.opengis.net/ont/geosparql#wktLiteral