メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.667012258665 35.2657458468984, 136.666187808192 35.264587920592, 136.665724630497 35.2638236003586, 136.671207529158 35.262531597563, 136.674290356593 35.2617382529694, 136.676246184484 35.2612392136887, 136.678386523095 35.2606860316002, 136.679153241928 35.2626975595932, 136.667012258665 35.2657458468984)) ^^http://www.opengis.net/ont/geosparql#wktLiteral