メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.415747388458 33.1869360065525, 130.415502544589 33.1869598947085, 130.415260431972 33.1869824949977, 130.414918825048 33.1870117379792, 130.414853897282 33.186866011982, 130.414858920825 33.1867275557622, 130.414846977247 33.1866651728609, 130.415148735066 33.1865108039302, 130.415289180973 33.186456059674, 130.415432264093 33.1866229351701, 130.415469473765 33.1866023297005, 130.415747388458 33.1869360065525)) ^^http://www.opengis.net/ont/geosparql#wktLiteral