メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.24947110743 36.6258202588013, 137.249543347706 36.6261606323578, 137.249324756211 36.6262139428996, 137.248660397868 36.6267986529725, 137.248337190684 36.6271306406765, 137.247780110406 36.6268707938311, 137.247590283398 36.6267786181281, 137.247113923744 36.6265538466566, 137.247730658913 36.6257844268914, 137.248034401018 36.6254023944767, 137.249367363788 36.6254449143636, 137.24947110743 36.6258202588013)) ^^http://www.opengis.net/ont/geosparql#wktLiteral