メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.97651355723 35.2757773743723, 136.975500062061 35.2757758812709, 136.974872372438 35.2758311378274, 136.974435871201 35.2758947991503, 136.973714831005 35.2760303263601, 136.972851521184 35.2762058311796, 136.971469263097 35.2764968353291, 136.971469338514 35.276495642791, 136.971648182149 35.2736577402328, 136.971697887479 35.2728687422799, 136.971712103553 35.272643394944, 136.976535264102 35.2726372005215, 136.976533371388 35.2728766500216, 136.97651355723 35.2757773743723)) ^^http://www.opengis.net/ont/geosparql#wktLiteral