メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.453441881787 36.4084419429897, 136.453519958839 36.4092012055198, 136.453039287165 36.4092162456661, 136.452450878839 36.4092295399921, 136.452444276307 36.4088231768104, 136.451989932648 36.408798172711, 136.451728607025 36.4087604001235, 136.451748665204 36.408448817135, 136.451775758403 36.4081205930848, 136.453027490263 36.4081156536076, 136.453026981259 36.4081713033005, 136.453421288934 36.4081695035924, 136.453441881787 36.4084419429897)) ^^http://www.opengis.net/ont/geosparql#wktLiteral