メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.363050306106 33.5666582960393, 131.361195372582 33.5665554122535, 131.360914428979 33.5665616901612, 131.360768153248 33.5665862092905, 131.360650716059 33.5666346632104, 131.36055620566 33.5666921391955, 131.360436566731 33.5665655841398, 131.360454516755 33.566136457563, 131.360366090922 33.5660688076227, 131.360391782381 33.5659636654903, 131.360401721958 33.5658345484436, 131.360385021597 33.5655917421639, 131.360219678494 33.5649748899282, 131.363146319895 33.5651217396211, 131.363132793414 33.5656188312224, 131.363050306106 33.5666582960393)) ^^http://www.opengis.net/ont/geosparql#wktLiteral