メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.735164693578 35.3418778057245, 136.735052528952 35.3414886558225, 136.734189927424 35.3416187450495, 136.734127960317 35.3412780163957, 136.734941688343 35.3411256383459, 136.734956680917 35.3411752714866, 136.735699562345 35.3410452410164, 136.735680968929 35.3409776363436, 136.737331847505 35.3406711713447, 136.737427568453 35.3410594881215, 136.737541162678 35.3414487140785, 136.735164693578 35.3418778057245)) ^^http://www.opengis.net/ont/geosparql#wktLiteral