メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.872904098209 43.0138210136659, 142.872618671864 43.0136488502485, 142.871817612784 43.0131471782472, 142.871885624216 43.0130868183882, 142.87331740347 43.0118750102847, 142.874427162768 43.0125289424092, 142.874462608238 43.0125512547574, 142.874436483005 43.0125739023497, 142.874006801945 43.0129528535194, 142.873865135705 43.0130174133571, 142.87369909474 43.0131261305115, 142.87360593354 43.0131871206426, 142.872960197498 43.0137720407472, 142.872904098209 43.0138210136659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral