メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.723515182832 35.1834893977233, 136.722432668734 35.1839129506498, 136.721959215326 35.1829112345766, 136.721860336482 35.1827020763181, 136.722287359186 35.182540542628, 136.7222875296 35.1825092055125, 136.722806343273 35.182314284602, 136.722886166651 35.1824155613647, 136.723127597939 35.1827296807787, 136.723174196821 35.1828048501909, 136.723196767312 35.1828581015517, 136.72326109611 35.183048614904, 136.723282880366 35.183128412047, 136.72330921091 35.1831920990734, 136.723321680217 35.1832338341534, 136.723515182832 35.1834893977233)) ^^http://www.opengis.net/ont/geosparql#wktLiteral