メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.106535309319 35.0363002657909, 137.106341720347 35.0366469636003, 137.104377787349 35.0363365221298, 137.104499258045 35.036009299132, 137.104566043887 35.0357590981825, 137.104781309122 35.0359009104562, 137.104945640125 35.0360024108807, 137.105123697437 35.0360701119416, 137.105288071223 35.0361152685925, 137.105589451512 35.0361604930106, 137.106123718134 35.0362396372667, 137.106535309319 35.0363002657909)) ^^http://www.opengis.net/ont/geosparql#wktLiteral