メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.847204497526 35.4068830112474, 136.846979996732 35.4081798694597, 136.843588641061 35.4078697512449, 136.843605444107 35.4069908592105, 136.843566255177 35.406598153239, 136.843527550365 35.4064086846562, 136.843455954133 35.4061896227745, 136.845090465387 35.4059710153885, 136.84521072482 35.4059568273258, 136.84580627235 35.4057458022079, 136.846527431708 35.4054708109348, 136.846609336848 35.4054161680288, 136.846669377523 35.4053661158559, 136.846827209364 35.4050491411388, 136.847486103154 35.4050829303251, 136.847204497526 35.4068830112474)) ^^http://www.opengis.net/ont/geosparql#wktLiteral