メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.922240642845 35.1356563424574, 136.922129874692 35.136152473486, 136.921281749311 35.1360694607449, 136.921284241924 35.1361102417979, 136.920647651032 35.1361010426151, 136.920644466456 35.136055470772, 136.920697649647 35.135610915395, 136.920746544294 35.1350957851549, 136.921383966512 35.1351251963029, 136.922018193591 35.1351267807914, 136.922031052655 35.1350122254119, 136.922362211937 35.1350595248351, 136.922240642845 35.1356563424574)) ^^http://www.opengis.net/ont/geosparql#wktLiteral