メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.167003298126 35.0999314684684, 137.166493843384 35.1003452329052, 137.166303604465 35.1001157846158, 137.16521324572 35.1001150158429, 137.164203347217 35.1001325502267, 137.16418471512 35.0991545294439, 137.16418084728 35.0986623846245, 137.164714271818 35.0986630219416, 137.165150350378 35.098657952387, 137.165740633956 35.0983494116835, 137.165461872579 35.098014038496, 137.165754666117 35.0978821283675, 137.166476719171 35.0988456338395, 137.167112481295 35.0996746903682, 137.16716341688 35.0997237065586, 137.167226955429 35.0997515237002, 137.167003298126 35.0999314684684)) ^^http://www.opengis.net/ont/geosparql#wktLiteral