メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.891459168269 33.2600928803622, 129.891336406791 33.2600474051872, 129.891180157043 33.2600246976867, 129.891044356082 33.2600625591879, 129.890830879204 33.2602430725549, 129.890647073289 33.2598654342961, 129.890595678492 33.2592398508469, 129.891074063585 33.2591486167433, 129.891557950138 33.2594260424551, 129.891921157982 33.2598655806472, 129.891459168269 33.2600928803622)) ^^http://www.opengis.net/ont/geosparql#wktLiteral