メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.050853707998 42.9095520850194, 143.050820762874 42.9098228865481, 143.050810597174 42.9099022221298, 143.050722694739 42.9098969992289, 143.049998620577 42.9098469867615, 143.049979180565 42.9098457162961, 143.049990832561 42.9097702379146, 143.050032170339 42.909489601079, 143.050042107832 42.9094220830845, 143.050194700029 42.9084159575266, 143.050986497336 42.908465847714, 143.050862176602 42.9094820439033, 143.050853707998 42.9095520850194)) ^^http://www.opengis.net/ont/geosparql#wktLiteral