メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.051697024723 42.9085198877317, 143.052449396577 42.9085691289355, 143.0523934198 42.9090183854387, 143.052382165645 42.9090948461053, 143.052326694482 42.9094723598236, 143.052299230697 42.9096047079392, 143.052298154686 42.9096618263061, 143.052293080502 42.9099270169512, 143.052292163719 42.909944888173, 143.052289324857 42.9099988535603, 143.051443903598 42.9099397827212, 143.050810597174 42.9099022221298, 143.050820762874 42.9098228865481, 143.050853707998 42.9095520850194, 143.050862176602 42.9094820439033, 143.050986497336 42.908465847714, 143.051697024723 42.9085198877317)) ^^http://www.opengis.net/ont/geosparql#wktLiteral