メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.006146498133 43.5686606986476, 145.005270338999 43.5681107082465, 145.005339225839 43.568056271449, 145.005386641788 43.5680187375467, 145.00585905221 43.5676434431822, 145.005960400298 43.5675628739226, 145.006147608111 43.5674141680819, 145.006514055051 43.5676453939637, 145.007016535243 43.5679667547277, 145.00668971624 43.5682221981283, 145.006216816669 43.56860373266, 145.006146498133 43.5686606986476)) ^^http://www.opengis.net/ont/geosparql#wktLiteral