メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.862601974591 35.1571249958076, 136.863479414484 35.1570174223907, 136.863504003571 35.1573765806309, 136.86388740655 35.1573688056141, 136.863895686772 35.1575065777545, 136.863849745598 35.1579356322455, 136.862546042583 35.1579487067879, 136.862202241274 35.1575502254389, 136.861986484973 35.1575570075514, 136.861978101795 35.1575341684229, 136.861968837127 35.1571206814997, 136.862022936125 35.1571234938019, 136.862238534495 35.1571240353074, 136.862250708521 35.1574140596528, 136.862611369733 35.1574053591904, 136.862601974591 35.1571249958076)) ^^http://www.opengis.net/ont/geosparql#wktLiteral