メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.870525031821 35.4070507898555, 136.870970127681 35.4070540024297, 136.870966458474 35.4072284939099, 136.870889496046 35.4072283037286, 136.870878285918 35.4078181125014, 136.870504093261 35.4078124696378, 136.869312665924 35.4077821930747, 136.869117493249 35.407776990374, 136.869118385249 35.407768260059, 136.869178863089 35.4071813188675, 136.86921124917 35.4068944381688, 136.869213335278 35.4068945136618, 136.870104998888 35.406915528637, 136.870110222826 35.4069453293206, 136.870528500912 35.4069609422349, 136.870525031821 35.4070507898555)) ^^http://www.opengis.net/ont/geosparql#wktLiteral