メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.780034442886 35.4486539418977, 136.78002380562 35.4489083035316, 136.779403303019 35.448968397116, 136.77939808614 35.4489165866294, 136.779115425255 35.4489356122213, 136.779120848754 35.4489893243916, 136.778221034588 35.4490874251818, 136.778159925886 35.4488470589745, 136.778059801835 35.4484879432124, 136.778058320147 35.4484826923841, 136.77829482271 35.4484608458401, 136.778304460088 35.4485239738787, 136.779546481709 35.4484058039355, 136.779543703347 35.4484648432564, 136.780038265585 35.4484481127542, 136.780034442886 35.4486539418977)) ^^http://www.opengis.net/ont/geosparql#wktLiteral