メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.764536290819 35.4207108711887, 136.764198267561 35.4207929222937, 136.764228410353 35.4208728415678, 136.763891189007 35.4209404581752, 136.763802964984 35.4207417250162, 136.763772419236 35.4205610690359, 136.76379983197 35.4203508862999, 136.763799949227 35.4201280798739, 136.764391828902 35.4201083786331, 136.764527805779 35.4205744760075, 136.764536290819 35.4207108711887)) ^^http://www.opengis.net/ont/geosparql#wktLiteral