メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.67004325626 42.6744211908938, 141.671505389773 42.674897439309, 141.671121503636 42.6755201846279, 141.670911598332 42.6758606890378, 141.670765742522 42.675964889751, 141.670182455891 42.6763818355399, 141.669641140746 42.6759466789628, 141.668702429286 42.6755134432202, 141.666686060889 42.6748213707795, 141.667518289353 42.67359855477, 141.668071037602 42.6737786582945, 141.668904965675 42.674050367832, 141.669484402757 42.6742391533436, 141.67004325626 42.6744211908938)) ^^http://www.opengis.net/ont/geosparql#wktLiteral