メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.61496151727 35.3591420716081, 136.615884322165 35.3590710749577, 136.615974373154 35.3590638095138, 136.616004595663 35.35931620132, 136.615005494775 35.3594001596302, 136.614038602539 35.3594815115894, 136.613949689346 35.3592963153174, 136.613911565853 35.35903106928, 136.614931220893 35.3589641859253, 136.61496151727 35.3591420716081)) ^^http://www.opengis.net/ont/geosparql#wktLiteral