メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.454149478715 36.3957377086621, 136.453653210531 36.3957579866687, 136.451635269865 36.3958996385365, 136.45150099964 36.3956302042624, 136.451128062783 36.3950081929239, 136.450868104152 36.3945837787862, 136.451678990678 36.3945390452069, 136.452820182235 36.394469403914, 136.45421269286 36.3943978506524, 136.4550175255 36.3957006924345, 136.454318633519 36.3957308079169, 136.454271237186 36.395732739375, 136.454149478715 36.3957377086621)) ^^http://www.opengis.net/ont/geosparql#wktLiteral