メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.973782653851 36.2283165566699, 137.974711723162 36.228320651335, 137.976022395515 36.2283502320056, 137.976039827027 36.2289223373556, 137.976040608657 36.2289485689654, 137.975972524557 36.2296767681475, 137.975848765239 36.2301136836749, 137.975785509459 36.2302876694456, 137.975486935891 36.2310562217222, 137.975428377839 36.2312161647531, 137.974795448726 36.2312133783683, 137.974464284973 36.2312136080711, 137.974368344625 36.2312127633649, 137.973503404533 36.2312051275988, 137.972405197906 36.2311985823662, 137.971527878961 36.2311905410638, 137.971533414486 36.2303094041944, 137.971535557943 36.2299713939179, 137.971554119743 36.2294599646257, 137.971554492433 36.2294497046824, 137.971555057978 36.229081322548, 137.971567148237 36.2287439547357, 137.971562011731 36.2283317340517, 137.972446790278 36.2283309706336, 137.973086766256 36.22832286697, 137.973782653851 36.2283165566699)) ^^http://www.opengis.net/ont/geosparql#wktLiteral