メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.623076042766 34.6504275006691, 135.621921616185 34.6504143532861, 135.621920082344 34.650348284951, 135.621904503252 34.6493557295479, 135.621893001885 34.6484220669811, 135.621872180006 34.6474672466796, 135.623013356547 34.6474709162778, 135.623069426791 34.6503449352671, 135.623076042766 34.6504275006691)) ^^http://www.opengis.net/ont/geosparql#wktLiteral