メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.875677237295 35.1256981969358, 136.875706474534 35.1252088207898, 136.87619963433 35.1252237585983, 136.876139389477 35.1269724548515, 136.875746337442 35.1269714949638, 136.875742169177 35.1268657786164, 136.875598871608 35.1268637372398, 136.874593225658 35.1268399363683, 136.874592181438 35.1268085243412, 136.874596517338 35.1266710937786, 136.874597595191 35.1266369132538, 136.874603831104 35.1264391067894, 136.874599443469 35.126305501221, 136.87459764723 35.1262505663015, 136.874605832067 35.126046848518, 136.87462265148 35.125682091406, 136.875677237295 35.1256981969358)) ^^http://www.opengis.net/ont/geosparql#wktLiteral