メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.807398552902 35.2606240253808, 136.807297326327 35.2605890063191, 136.805923191531 35.2601485129512, 136.805952294156 35.2598235287467, 136.805953265075 35.2598126155657, 136.806039532545 35.2584601238154, 136.807059674632 35.2583433654799, 136.808477598806 35.2582091814332, 136.808852191863 35.2581840896644, 136.807631751401 35.2599895029056, 136.807312391622 35.2600315849342, 136.807344144408 35.2602373135761, 136.807398552902 35.2606240253808)) ^^http://www.opengis.net/ont/geosparql#wktLiteral