メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.204939614784 40.6196360276917, 141.204294407152 40.6194002755637, 141.204393465762 40.6192351646705, 141.20450765082 40.6190545267373, 141.204819695715 40.6186312725833, 141.204992672185 40.6183887363933, 141.205094509428 40.6182342425357, 141.205122438405 40.6182175464237, 141.205239042736 40.6181945843641, 141.205613280706 40.6183215097326, 141.205822126135 40.618373046539, 141.205704947118 40.6185702990002, 141.205590859064 40.618767543282, 141.205559981301 40.6188103534182, 141.205476532154 40.6189173637989, 141.205164398009 40.6193240133568, 141.204939614784 40.6196360276917)) ^^http://www.opengis.net/ont/geosparql#wktLiteral