メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.215020552748 34.8268108335382, 137.214036856382 34.826991544516, 137.214036809756 34.8269013945095, 137.214009423993 34.8267887183022, 137.214091301374 34.8265858468382, 137.214077573493 34.8264618962261, 137.213817940431 34.8264169285524, 137.213735802332 34.8261127061398, 137.213530865401 34.8261465966618, 137.213462421081 34.8258987122981, 137.213462323541 34.8257071436343, 137.21409077025 34.8255603902982, 137.215935129154 34.8251652022269, 137.215716831044 34.8257512727318, 137.215553050525 34.8260894061474, 137.215454367245 34.8262170675739, 137.215020552748 34.8268108335382)) ^^http://www.opengis.net/ont/geosparql#wktLiteral