メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.742779087668 35.3089737200885, 136.7428776681 35.3089818093773, 136.743685518815 35.309011297132, 136.743673155853 35.3091751975272, 136.743660757059 35.3092300826966, 136.743668871299 35.3092803929747, 136.743658444613 35.3094352156993, 136.743488585402 35.3094388538663, 136.743477464879 35.3095948712733, 136.743661084136 35.309588463788, 136.743715914199 35.3102537915295, 136.743292062337 35.3102492966769, 136.743313597832 35.309594373578, 136.742676852293 35.309592943058, 136.742779087668 35.3089737200885)) ^^http://www.opengis.net/ont/geosparql#wktLiteral