メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.157112911668 34.6681239037506, 135.156950058487 34.6682944676172, 135.156394413034 34.6688764449893, 135.156112710924 34.6686900225573, 135.155653052035 34.6683856402317, 135.155408668661 34.6682227703749, 135.155750571366 34.6678872668968, 135.156592829358 34.6680369777465, 135.157112911668 34.6681239037506)) ^^http://www.opengis.net/ont/geosparql#wktLiteral