メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.325283116386 43.1172687071988, 141.325611942087 43.117592549284, 141.325968194385 43.1179441089826, 141.325609322916 43.1181359427615, 141.325239319472 43.1183337319351, 141.32489885438 43.1185143891178, 141.324498864533 43.1187267737344, 141.324161036802 43.1183887200398, 141.323825200519 43.1180526500586, 141.323501976586 43.1177270198012, 141.323106038843 43.1173280811902, 141.324204381015 43.1167441980198, 141.324565553275 43.1165522478097, 141.324935145262 43.1169160157864, 141.325283116386 43.1172687071988)) ^^http://www.opengis.net/ont/geosparql#wktLiteral