メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.424074027567 34.8917075279321, 135.424083356866 34.8928466827973, 135.424092034375 34.8937117222312, 135.424116846713 34.8942988320761, 135.422806808548 34.894338742391, 135.420492248518 34.8930660056392, 135.42047928502 34.8917326999474, 135.420473507506 34.8912965652933, 135.422231600113 34.8912759190911, 135.424072430896 34.8912594537235, 135.424074027567 34.8917075279321)) ^^http://www.opengis.net/ont/geosparql#wktLiteral