メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.04263728598 43.5743606358469, 142.043012310465 43.5746310233694, 142.042674359253 43.5748422510137, 142.042331791169 43.5745631977197, 142.041981518594 43.5741834947201, 142.041886974439 43.5741115268565, 142.04155195564 43.5739041444586, 142.041422069828 43.5737660776254, 142.041266494296 43.5735395312199, 142.040608570584 43.5725612980671, 142.040432481214 43.5723603815583, 142.041082338009 43.572631059594, 142.041663903063 43.5729264714335, 142.041852597428 43.5731910158376, 142.041950632487 43.5734008282471, 142.04197173246 43.5735803700645, 142.042030744968 43.5736551604231, 142.042286749283 43.5738738640596, 142.042368876727 43.5741123751225, 142.04263728598 43.5743606358469)) ^^http://www.opengis.net/ont/geosparql#wktLiteral