メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.356773912678 44.3547631966102, 143.355976941028 44.3550485543759, 143.355162369982 44.3553314020671, 143.35515259474 44.3553170838152, 143.354283660308 44.3540572754971, 143.355074785046 44.3537896012243, 143.35562183393 44.3536182234955, 143.356001601719 44.3534993019745, 143.356516027018 44.3542817264356, 143.356405608301 44.3543197115303, 143.356773912678 44.3547631966102)) ^^http://www.opengis.net/ont/geosparql#wktLiteral