メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.354591336672 44.3493592985184, 143.355392219001 44.3494211570969, 143.355387165744 44.3494389957976, 143.355161096266 44.3502421669951, 143.355051157814 44.3511242290275, 143.354799044317 44.3511100759927, 143.354278234586 44.3510808000094, 143.353485028127 44.3510740539544, 143.353592896373 44.3501327022391, 143.353715533937 44.3496234992789, 143.353783306363 44.3493394083176, 143.354591336672 44.3493592985184)) ^^http://www.opengis.net/ont/geosparql#wktLiteral