メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.250342324555 35.3647836174291, 137.250121091178 35.3647801722568, 137.249633633992 35.3650454202546, 137.249486517276 35.3650553756454, 137.249515624368 35.3653089436545, 137.249494218749 35.3653153666423, 137.249481682402 35.3653226987076, 137.249375137008 35.3653838236999, 137.249334307658 35.3654065259564, 137.249145527452 35.3653821435564, 137.249120338357 35.365478847989, 137.249005408691 35.3654650507346, 137.248478165008 35.3653870857255, 137.248279208142 35.3653988337144, 137.248133736026 35.3652117481586, 137.247973234535 35.3649800955274, 137.247882891109 35.3648046633488, 137.247815321049 35.3646235133227, 137.249312656652 35.364603032813, 137.249326461625 35.3645456302363, 137.250176528592 35.3643778886975, 137.250342324555 35.3647836174291)) ^^http://www.opengis.net/ont/geosparql#wktLiteral