メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.838886667918 34.8851746848754, 136.83865831562 34.8859762697599, 136.838388689934 34.8868503496719, 136.838042319616 34.8867714289478, 136.838022917418 34.8868472276563, 136.837642323304 34.8867778601002, 136.837724448461 34.8864838292336, 136.837894885644 34.8850677842176, 136.837926535428 34.8847050090673, 136.837932197981 34.8846400862754, 136.837909805634 34.8846348128105, 136.837983099608 34.8846115618833, 136.839004061869 34.884746079482, 136.838886667918 34.8851746848754)) ^^http://www.opengis.net/ont/geosparql#wktLiteral