メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.037603479394 42.911100035609, 143.038373274393 42.9111704251387, 143.038212635081 42.9122930450759, 143.037459709077 42.9122373082795, 143.036834601518 42.912191591084, 143.036760329427 42.9121861227927, 143.036907894611 42.9110415796768, 143.036992807653 42.911048733976, 143.037603479394 42.911100035609)) ^^http://www.opengis.net/ont/geosparql#wktLiteral