メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.742211639748 35.3813491041816, 136.740740669633 35.3814166049291, 136.736806691343 35.38160855722, 136.736709236513 35.3799939770684, 136.73811927446 35.379922578372, 136.740626525909 35.3798219541471, 136.742111553663 35.3797552748731, 136.743530537242 35.3797060955789, 136.7435850869 35.3802012747876, 136.74359328213 35.3805337620742, 136.744134842592 35.3805194340526, 136.744178878613 35.3812587996184, 136.742211639748 35.3813491041816)) ^^http://www.opengis.net/ont/geosparql#wktLiteral