メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.878551821584 35.8536571814088, 139.878246273292 35.8536890420267, 139.878026072027 35.8537148492231, 139.877713659695 35.853715412755, 139.876519279588 35.8536288039926, 139.876537985414 35.8531312904957, 139.876986854328 35.8531499724033, 139.878552109641 35.8532201450058, 139.87855243816 35.853354022917, 139.878558132887 35.853525729924, 139.878551821584 35.8536571814088)) ^^http://www.opengis.net/ont/geosparql#wktLiteral