メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.944436273688 35.1386946618166, 136.94429286988 35.1395707539012, 136.943486132899 35.1395277045036, 136.943503696392 35.139263856908, 136.943541797574 35.1386915193898, 136.943584610088 35.1381430650371, 136.944221160094 35.1381612216764, 136.94431743434 35.1381623154849, 136.944318822115 35.1381640794565, 136.944501276585 35.138458297783, 136.944517988233 35.1386902359672, 136.944436273688 35.1386946618166)) ^^http://www.opengis.net/ont/geosparql#wktLiteral