メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.227769388896 35.2631898962317, 136.227504833605 35.2632574246027, 136.227453866997 35.2631330094995, 136.227391132166 35.2629767137695, 136.227340228786 35.2628746933032, 136.227246875836 35.2629067663739, 136.226920108651 35.2630031400387, 136.226814516833 35.2628277669473, 136.227404994415 35.2623638646544, 136.227475400432 35.2624850045867, 136.227504335157 35.2625610791504, 136.227526393654 35.2626189972904, 136.227573435983 35.2627370114153, 136.227679302492 35.2630017497456, 136.227769388896 35.2631898962317)) ^^http://www.opengis.net/ont/geosparql#wktLiteral