メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.339291145231 43.1015230552078, 141.340064021855 43.1016351975305, 141.339908010363 43.1022539701946, 141.339791970285 43.1027141175689, 141.33978626396 43.1027365771289, 141.338597494905 43.1025661907358, 141.338255022488 43.1021213048021, 141.337995813201 43.1017831375069, 141.338392098793 43.101621872082, 141.338492296045 43.1015897572325, 141.338946273446 43.1014147438919, 141.339114139882 43.1013499027487, 141.339291145231 43.1015230552078)) ^^http://www.opengis.net/ont/geosparql#wktLiteral