メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.95328554846 35.2620345940072, 136.953286950108 35.2620647396188, 136.952509047875 35.2620345385666, 136.951272862322 35.2619362164442, 136.951497808559 35.2614036715195, 136.951451924357 35.261082586693, 136.951800278846 35.2610038101706, 136.95219204053 35.2609804619619, 136.952479333037 35.2609477793447, 136.952413954292 35.2606922975462, 136.952782419127 35.2606215088752, 136.952823426031 35.2607004576735, 136.953329621599 35.2606674390946, 136.953308969276 35.2613434446075, 136.95328554846 35.2620345940072)) ^^http://www.opengis.net/ont/geosparql#wktLiteral