メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.494720791932 35.9966515367592, 136.49473179535 35.996878538431, 136.494744381594 35.9971434109331, 136.494765179032 35.9972947066872, 136.494778083162 35.9974589152387, 136.494814777237 35.9976165909572, 136.4948631624 35.9977387846238, 136.494945639348 35.9979220400763, 136.49467859585 35.9977186163282, 136.494391618896 35.9975072158898, 136.494160491006 35.997337461326, 136.493664332522 35.9969803694241, 136.493119459371 35.9964398789493, 136.492740882472 35.9961842689083, 136.493014720063 35.9956009170694, 136.49392059166 35.9954620640981, 136.494286682129 35.9954066210635, 136.49459971665 35.9953398942769, 136.49463182417 35.9953337139867, 136.494636996403 35.9955221196857, 136.494656697592 35.9958231972312, 136.494677918092 35.996042128564, 136.494686557858 35.9961548246622, 136.49469623129 35.9964253426631, 136.494719249783 35.9966201103822, 136.494720791932 35.9966515367592)) ^^http://www.opengis.net/ont/geosparql#wktLiteral