メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.370075505784 37.349758265895, 140.371223647268 37.3497386766611, 140.371141221375 37.3502188987752, 140.371085779607 37.3506870309888, 140.369983128053 37.3507320366516, 140.369973015361 37.3505559424353, 140.369936873484 37.3504398063715, 140.369785507394 37.3502713920555, 140.36981451256 37.3500034598016, 140.369775285759 37.3497938446255, 140.369605907083 37.3498208045606, 140.369572719196 37.3494806417311, 140.370059069414 37.3494612520187, 140.370075505784 37.349758265895)) ^^http://www.opengis.net/ont/geosparql#wktLiteral