メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.328946232211 42.9878239409496, 141.329070705174 42.9878283184992, 141.329804826853 42.9878724832486, 141.329681887551 42.9888521783049, 141.329659233815 42.9890738171569, 141.329549902931 42.9898921431388, 141.329527218952 42.9898906949397, 141.328898249909 42.9898476546929, 141.328677192648 42.9898311760756, 141.32784922837 42.9897762596833, 141.327244253021 42.9897304501868, 141.326853935232 42.9897126731911, 141.326623424406 42.9896941455957, 141.326776621419 42.9893856480894, 141.326631608395 42.9891015403937, 141.327120813432 42.9882964815999, 141.327313269117 42.9883161784009, 141.327402782545 42.9878387963153, 141.327814379116 42.9878615954636, 141.32836115082 42.9878842152095, 141.328378233822 42.9877793496247, 141.328946232211 42.9878239409496)) ^^http://www.opengis.net/ont/geosparql#wktLiteral