メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.401148566148 36.8174308181097, 137.401220204243 36.8173826587361, 137.401507104502 36.8173243592619, 137.401835989187 36.8179826458723, 137.401985020539 36.8183072070418, 137.401807500342 36.8183677569605, 137.401694817576 36.8183752308196, 137.401545992926 36.8183682737537, 137.401379058245 36.8183324127257, 137.401135138089 36.8181914478664, 137.400746749361 36.8179928916195, 137.400385473927 36.8178050539154, 137.399942815614 36.8175630196261, 137.400089544217 36.8172966652079, 137.400149073419 36.8172036106066, 137.40038461662 36.8173057301436, 137.400560092245 36.817315031523, 137.40074944141 36.8172937472472, 137.400872965706 36.8172742830318, 137.400968736496 36.8172997930909, 137.401040666818 36.8173477396385, 137.401148566148 36.8174308181097)) ^^http://www.opengis.net/ont/geosparql#wktLiteral