メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.923088054856 35.1351553089883, 136.923449282127 35.1352030193165, 136.923450217437 35.1352921795698, 136.923454307218 35.1356829085307, 136.92347494294 35.1356835843149, 136.923383448024 35.1361518670945, 136.923364208157 35.1362503531001, 136.923349928333 35.1363027204694, 136.923303990323 35.1364710843026, 136.923213054482 35.1364630814075, 136.922831867222 35.1364294144987, 136.922868040739 35.1362368045837, 136.922129874692 35.136152473486, 136.922240642845 35.1356563424574, 136.922362211937 35.1350595248351, 136.923088054856 35.1351553089883)) ^^http://www.opengis.net/ont/geosparql#wktLiteral