メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.835564126683 43.0792172695925, 142.835423474148 43.0795601470678, 142.835360928726 43.0795461206903, 142.834812053134 43.0794226887946, 142.83444590072 43.0792835511945, 142.833875145784 43.0791896955757, 142.833816394878 43.0791962551517, 142.833772941919 43.0792225694378, 142.83379236228 43.07917619307, 142.834186000087 43.0781993320008, 142.834409217357 43.077639697962, 142.835336569868 43.0778339843871, 142.836040827396 43.077999307787, 142.836061692121 43.0780041943116, 142.835649360876 43.0790094284045, 142.835564126683 43.0792172695925)) ^^http://www.opengis.net/ont/geosparql#wktLiteral