メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.751401324951 35.3997702061672, 136.751370579544 35.3996691152675, 136.751452945351 35.3996491868713, 136.751169623751 35.3987578726362, 136.751158334286 35.3987120599913, 136.751174046451 35.3987088741475, 136.751592242776 35.3986239679769, 136.751659246257 35.398874053627, 136.751941653544 35.3988124139802, 136.752263006273 35.3987030196613, 136.752302896074 35.398781958159, 136.752534724773 35.3992845064884, 136.751816447307 35.3994218404788, 136.751880966628 35.3996533965372, 136.751401324951 35.3997702061672)) ^^http://www.opengis.net/ont/geosparql#wktLiteral