メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.426622516532 43.8058806824512, 142.427289629929 43.8062925933702, 142.427633856858 43.8065054479822, 142.426430474123 43.8074964770271, 142.426099037635 43.807291281617, 142.425447901174 43.8068909247102, 142.424970142027 43.8066017933791, 142.424904434919 43.8065620217075, 142.424367326564 43.8062300296911, 142.424777086536 43.8058694382511, 142.425519602253 43.805215999692, 142.426622516532 43.8058806824512)) ^^http://www.opengis.net/ont/geosparql#wktLiteral