メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.82008135983 35.5195160472165, 137.820202850531 35.5195925749834, 137.820678818405 35.5199048188661, 137.821160860484 35.5202121287068, 137.821228792545 35.520240995745, 137.821307516145 35.5202464025853, 137.821428845755 35.5202247632641, 137.821656450835 35.5201740400113, 137.821555477519 35.5202948377967, 137.82124273884 35.5205642239791, 137.821116960528 35.5205721780356, 137.820554707858 35.5211509850701, 137.820370709826 35.521060797874, 137.82004086896 35.5208447258636, 137.819616046246 35.5205699164382, 137.818858630861 35.5201306657309, 137.818893126449 35.5197128542743, 137.818893297886 35.5196569767953, 137.818894119774 35.5193661147899, 137.8188884301 35.5191222204861, 137.818862279806 35.5190112677215, 137.818808610571 35.5189460381919, 137.818792438352 35.5187042677661, 137.82008135983 35.5195160472165)) ^^http://www.opengis.net/ont/geosparql#wktLiteral