メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.733689584118 35.329823886198, 136.732438226714 35.3298203916781, 136.732338489835 35.3297103102046, 136.7318258955 35.3293528166236, 136.732296455771 35.3289205367214, 136.732570633449 35.3291259677849, 136.73298676669 35.3293393716429, 136.733294171831 35.3295182290075, 136.73362900569 35.3297507774733, 136.733689584118 35.329823886198)) ^^http://www.opengis.net/ont/geosparql#wktLiteral