メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.921168628522 35.3221518198824, 136.919610643733 35.3231062320955, 136.918894178498 35.3223279931876, 136.918677306 35.3221153813955, 136.917772877439 35.3210987355049, 136.917503387317 35.3207101804044, 136.91701759615 35.3198648006357, 136.916628866043 35.3191233168138, 136.917978095575 35.3191086521171, 136.917956792462 35.3191978295731, 136.919066744402 35.3191144909698, 136.919693246562 35.3190744440295, 136.919799696099 35.3193314134167, 136.92026797969 35.3204116037214, 136.920357000875 35.3205307206777, 136.921134291345 35.3220697151513, 136.921168628522 35.3221518198824)) ^^http://www.opengis.net/ont/geosparql#wktLiteral