メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.259717300445 35.2719853337164, 136.260022891818 35.2718220742838, 136.260764740902 35.272740253267, 136.261065807499 35.2731365698021, 136.26074537276 35.2732833145187, 136.260060144431 35.2735768268085, 136.259853069625 35.2731879116129, 136.259659604039 35.2729330491665, 136.259568553851 35.2727831050923, 136.259544668375 35.2727248475879, 136.259414731311 35.2721533728827, 136.259717300445 35.2719853337164)) ^^http://www.opengis.net/ont/geosparql#wktLiteral