メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.82633586272 35.3900137406395, 136.825267884949 35.3901347656545, 136.824716324171 35.3902527244646, 136.824212074503 35.3903977838188, 136.823214327716 35.3907416566495, 136.823543207809 35.3897743013403, 136.82364929937 35.3897148129699, 136.823854096458 35.3896285605656, 136.824726510076 35.3893558773898, 136.826023571295 35.3896392876046, 136.826268932241 35.3896509587899, 136.82633586272 35.3900137406395)) ^^http://www.opengis.net/ont/geosparql#wktLiteral