メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.365269868372 43.7826003483655, 142.364651355335 43.7830473708168, 142.364050690277 43.7834813973966, 142.363316864614 43.7839956498222, 142.362817086848 43.7836204032561, 142.361708521263 43.782809951714, 142.362231282028 43.7824396192546, 142.363020257942 43.7818664257069, 142.363923891659 43.7811912344594, 142.363936111289 43.7811979212368, 142.365447003255 43.7800913586978, 142.367910026441 43.7806303671803, 142.368330194491 43.7809400433472, 142.368727681782 43.7812329877844, 142.366659223666 43.7826820612645, 142.365792539668 43.7821970192636, 142.365269868372 43.7826003483655)) ^^http://www.opengis.net/ont/geosparql#wktLiteral