メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.385941434774 43.762993703498, 142.386087055414 43.7632901674737, 142.386185476926 43.7634445489745, 142.385452056083 43.7636465853375, 142.38533209594 43.7638242007402, 142.384846707085 43.7639390933861, 142.384547974819 43.7639905828475, 142.384296858294 43.7634591185165, 142.384224446171 43.7634839208501, 142.383963183608 43.7629527673133, 142.383959686052 43.7629017696855, 142.384904630117 43.7626241469742, 142.385190024088 43.7625187531267, 142.385773683224 43.7623419474656, 142.386077624831 43.762888500037, 142.385941434774 43.762993703498)) ^^http://www.opengis.net/ont/geosparql#wktLiteral