メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.10339312977 39.4406961815132, 141.098185076383 39.4416852235426, 141.097676273729 39.4400872972247, 141.096740316781 39.4371715433933, 141.096548637792 39.4366151165278, 141.096382693168 39.4362828737098, 141.096251682775 39.4360693422922, 141.095204127437 39.4351115112199, 141.098816741682 39.4353835504146, 141.098744998659 39.4356579239247, 141.101569290965 39.4351211283098, 141.102226890952 39.4370915305975, 141.103183281043 39.4401215807991, 141.103203225541 39.4401157288698, 141.10339312977 39.4406961815132)) ^^http://www.opengis.net/ont/geosparql#wktLiteral