メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.659767435337 33.2520783980659, 131.660452695148 33.2521594711924, 131.66024226327 33.2532906908814, 131.660069288069 33.2543194828598, 131.659942922277 33.2550693222382, 131.659803458431 33.2559562332159, 131.659434614084 33.2559101407604, 131.657555163851 33.2556558187861, 131.657726627511 33.2547954237023, 131.657841746728 33.2540527787024, 131.657945527278 33.2534863469326, 131.658047110557 33.2530014990192, 131.658113146524 33.2525397680363, 131.658241776894 33.2518890455047, 131.659767435337 33.2520783980659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral