メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.240472563388 38.0349313426503, 138.239946395449 38.0348952627874, 138.239913104027 38.0350100666181, 138.239934978499 38.0350274323968, 138.239860802504 38.0350637313417, 138.239675705954 38.0352147985869, 138.239656344399 38.0352285517196, 138.239567041249 38.0349943777233, 138.239525366713 38.0348636399399, 138.239491447929 38.0347914844647, 138.239470015838 38.0347301957772, 138.239447471663 38.0347010018858, 138.239456772777 38.0346130361732, 138.239462667473 38.0345571601599, 138.239470730583 38.0345293010964, 138.239497128018 38.0344769881489, 138.239550029216 38.0344106568292, 138.239426144085 38.0343539302133, 138.239519165082 38.0343672284691, 138.239670719685 38.034351233535, 138.239758521521 38.0343307342594, 138.239878816198 38.0344589740683, 138.240031852122 38.0346710488846, 138.240251457574 38.0347391107829, 138.240237404749 38.0348498722111, 138.240472563388 38.0349313426503)) ^^http://www.opengis.net/ont/geosparql#wktLiteral