メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.994547534832 34.9052330907176, 136.993710483074 34.9054554438303, 136.994119925273 34.9049268978631, 136.994578008951 34.904356233057, 136.99486014277 34.903983362065, 136.995261987392 34.9035141739183, 136.995471493951 34.9033360742228, 136.995683429218 34.9031866419295, 136.996361598477 34.9027342482476, 136.996311527402 34.9028674980132, 136.996217889967 34.9036037631722, 136.99618171291 34.9042354520952, 136.99614814613 34.9048138311536, 136.996121541939 34.9050383893308, 136.995144244786 34.9050482847536, 136.994547534832 34.9052330907176)) ^^http://www.opengis.net/ont/geosparql#wktLiteral