メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.931566300522 35.4788441308735, 136.931607991923 35.4789849167956, 136.931677711142 35.479235825045, 136.931890445106 35.4797122578251, 136.930568912162 35.4798054917621, 136.929701253011 35.4798756593309, 136.929662159622 35.4788501273404, 136.929656655094 35.4779077939292, 136.929656946787 35.477807512398, 136.930360589285 35.477803644454, 136.930521640871 35.4778039595465, 136.931340472577 35.4778062982989, 136.931438988899 35.4782578300911, 136.931496712196 35.4785408628637, 136.931566300522 35.4788441308735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral