メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.104850158476 35.2253885629293, 137.104890793287 35.2255263321272, 137.104923427752 35.2256220539456, 137.10378037069 35.2258077939014, 137.103739816381 35.2255829101117, 137.103621137673 35.2249266401803, 137.103797938934 35.2249039885067, 137.103939776944 35.2248922324898, 137.104048449069 35.2248766547918, 137.104106684937 35.2248689387261, 137.104240687932 35.2248880239637, 137.104369141927 35.2249295010518, 137.104529556759 35.2249822616316, 137.104604641082 35.2250367387196, 137.104747241516 35.2251996325637, 137.104850158476 35.2253885629293)) ^^http://www.opengis.net/ont/geosparql#wktLiteral