メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.039522321254 43.5743728489441, 142.039330550032 43.5748438306516, 142.039038463519 43.5747813528873, 142.038852308153 43.5747067914723, 142.038719492541 43.5746129857199, 142.038671254884 43.5744451019167, 142.038689644577 43.5742611971907, 142.038747947761 43.574087034485, 142.038694846332 43.5740385191498, 142.03851737942 43.5740252972578, 142.038527446399 43.573683249532, 142.039687792421 43.5739472873667, 142.039522321254 43.5743728489441)) ^^http://www.opengis.net/ont/geosparql#wktLiteral