メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.827651465787 35.5204093061346, 137.827575603869 35.5207218212965, 137.827549603363 35.520828782018, 137.827513478665 35.5209776207209, 137.827440025043 35.5212334974614, 137.826919329397 35.5211934423905, 137.826601949883 35.5211592047699, 137.82601025883 35.5210855464128, 137.825577124949 35.5210398490416, 137.825699481434 35.5204575414283, 137.825814566353 35.5199050161016, 137.825837386121 35.5197873315805, 137.826290905686 35.5198612759311, 137.82661463115 35.5199136127926, 137.826759699431 35.5199370985286, 137.827288807902 35.5203720014923, 137.827651465787 35.5204093061346)) ^^http://www.opengis.net/ont/geosparql#wktLiteral