メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929681409612 35.1431207146354, 136.929869296922 35.1431309481179, 136.930771248428 35.1431799212816, 136.930715531498 35.1438825124589, 136.93065234507 35.1447150925983, 136.930644369773 35.1447158511351, 136.930476656603 35.1447322801255, 136.929269336478 35.1448643924696, 136.929315260873 35.1448459620841, 136.929307903958 35.1445295276277, 136.929307054704 35.1441866975363, 136.929321342323 35.1431171106756, 136.929309992046 35.142906306139, 136.92952459005 35.1430039194587, 136.929520476466 35.1430328565139, 136.929679044326 35.1430419042331, 136.929681409612 35.1431207146354)) ^^http://www.opengis.net/ont/geosparql#wktLiteral