メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.707312679299 35.4196412870113, 136.704073240496 35.4196087603432, 136.704088682294 35.4175777424076, 136.706282097091 35.417616225914, 136.706295955161 35.4179395110028, 136.706260191867 35.4186306977824, 136.707251169501 35.4186344556154, 136.707329983371 35.4187680614904, 136.707340300199 35.4189205263862, 136.707208863977 35.418918901765, 136.707214494015 35.419215008681, 136.707298275349 35.4192160652234, 136.707278380937 35.4193564803675, 136.707293047409 35.419538362338, 136.707312679299 35.4196412870113)) ^^http://www.opengis.net/ont/geosparql#wktLiteral