メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.906808048228 35.105240711907, 136.907975421832 35.1056437317884, 136.907838451909 35.1061123247406, 136.907719380827 35.1063137649339, 136.907218364311 35.1061325393717, 136.907208038839 35.1061190658863, 136.907279273052 35.1059435097256, 136.906670305638 35.1057279641863, 136.906643252658 35.1057329763243, 136.905480949344 35.1053341806774, 136.905455184511 35.1053246876425, 136.905621984984 35.1048248229899, 136.905949688947 35.1049447624557, 136.906808048228 35.105240711907)) ^^http://www.opengis.net/ont/geosparql#wktLiteral