メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.867282055156 35.3404829658076, 136.867855501793 35.341591539131, 136.868359415005 35.3426286675562, 136.866960188748 35.3433745947913, 136.866792569983 35.3434675623282, 136.866496139361 35.3436186623597, 136.866046463554 35.3430375925271, 136.86525039891 35.3420593052352, 136.864673926498 35.3415303112054, 136.864374453014 35.3412461715623, 136.864969893489 35.3409702569512, 136.86683090897 35.3400993677196, 136.867053993479 35.3399838608228, 136.867282055156 35.3404829658076)) ^^http://www.opengis.net/ont/geosparql#wktLiteral