メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.24776760674 43.0578784103091, 141.247866576139 43.0578848325921, 141.248347884656 43.057917948663, 141.248989837638 43.0579926253394, 141.248923487058 43.0583213926695, 141.2489440543 43.0589610686553, 141.248934997705 43.0589576839196, 141.248852056728 43.0589268576709, 141.24878951792 43.0589035950541, 141.248404842033 43.0587903075216, 141.248112462128 43.0587224144105, 141.247577883068 43.0586737089547, 141.246681686618 43.0585919442051, 141.24677095506 43.0577997762806, 141.247179840323 43.0578276211739, 141.24776760674 43.0578784103091)) ^^http://www.opengis.net/ont/geosparql#wktLiteral