メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.161131323649 35.0844921030151, 137.16115013606 35.0844396357162, 137.161622246973 35.0844061355329, 137.161594328715 35.0851722303407, 137.161580470839 35.0856835235098, 137.161526339491 35.0856881680128, 137.16130919811 35.0856706217889, 137.161247558774 35.0852077085484, 137.160238934552 35.0853306890354, 137.160124121254 35.0845595854776, 137.160714860021 35.0845246172981, 137.161131323649 35.0844921030151)) ^^http://www.opengis.net/ont/geosparql#wktLiteral