メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.740740669633 35.3814166049291, 136.742211639748 35.3813491041816, 136.744178878613 35.3812587996184, 136.744296923628 35.3828361541614, 136.74373795789 35.382854363765, 136.743775545932 35.3833627243886, 136.742366473865 35.3834288916604, 136.740881706779 35.3834985939578, 136.738788016903 35.3835891617403, 136.736944048112 35.3836688939484, 136.736921793853 35.3832036218733, 136.736843200991 35.382114497964, 136.736806691343 35.38160855722, 136.740740669633 35.3814166049291)) ^^http://www.opengis.net/ont/geosparql#wktLiteral