メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.813150971843 35.3121207777517, 136.812854986994 35.3126130939008, 136.81277922744 35.3127391430797, 136.812085494042 35.3123525278096, 136.811647944583 35.3121133530224, 136.811669165215 35.311924678203, 136.811683098977 35.3116775999614, 136.811694847748 35.3114691090259, 136.811691978528 35.3113829725214, 136.811668400299 35.3111592382517, 136.811796782185 35.3111621493624, 136.812063026962 35.3112350430345, 136.812795046352 35.3114855682792, 136.813403016769 35.3116664317196, 136.813150971843 35.3121207777517)) ^^http://www.opengis.net/ont/geosparql#wktLiteral