メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.854301461436 43.3380595895986, 141.854495220697 43.3386608471436, 141.85338635832 43.338839858862, 141.852903921192 43.338906262153, 141.852396508777 43.3389910726413, 141.852336293163 43.3390022561146, 141.85187694801 43.3390693681699, 141.850644811321 43.3392425093023, 141.850381877982 43.3384062543559, 141.850349738278 43.338337221726, 141.851453691443 43.3381724280695, 141.851520120214 43.3380794071499, 141.851604304774 43.3380635951209, 141.854186281768 43.337666910873, 141.854238792303 43.3378459326238, 141.854301461436 43.3380595895986)) ^^http://www.opengis.net/ont/geosparql#wktLiteral