メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.900647353348 35.3314575972307, 136.900708019395 35.3328500008003, 136.900748870339 35.333494078979, 136.900637580495 35.3335000426432, 136.897884492504 35.3335615608778, 136.897830104573 35.3315307029154, 136.897778389259 35.3296917474031, 136.900576710827 35.3296242699022, 136.900645195943 35.3314015386952, 136.900647353348 35.3314575972307)) ^^http://www.opengis.net/ont/geosparql#wktLiteral