メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.138475105701 34.6541893991305, 135.138837027503 34.6538241565019, 135.138848044093 34.6538353521958, 135.139713013139 34.6544403832126, 135.139489324834 34.6547168181328, 135.139262492921 34.6549504528375, 135.139054640819 34.6551726929234, 135.138680281433 34.6549317686261, 135.138593572573 34.654875999286, 135.138549142859 34.654847135478, 135.138497510728 34.6548135305916, 135.138467315528 34.6547934468426, 135.138107769006 34.6545591839241, 135.138307613046 34.6543550281109, 135.138453463094 34.6542075720029, 135.138475105701 34.6541893991305)) ^^http://www.opengis.net/ont/geosparql#wktLiteral