メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.185811018215 34.801216781735, 137.185816071608 34.8015215898074, 137.185898102538 34.8018145530947, 137.185542944949 34.8018596860771, 137.185310730096 34.8018709928171, 137.184982872687 34.8018485095729, 137.184928326083 34.8022541788117, 137.183412009238 34.8022318598843, 137.183166120064 34.8022206241018, 137.183452795012 34.8013078507863, 137.185811018215 34.801216781735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral