メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.792560925311 35.3113122694082, 136.792465836299 35.3115150064627, 136.792120348913 35.3123007877934, 136.791964330326 35.3126382005007, 136.790935990057 35.3123110474413, 136.790876545469 35.3124212879892, 136.790140833867 35.312186661542, 136.790313403598 35.3125102385784, 136.789821230572 35.3125048983013, 136.789819196338 35.3123498171428, 136.789818343757 35.311547254926, 136.789813405189 35.3114258294009, 136.789810430403 35.311083349487, 136.789975148095 35.3106492788759, 136.791365715151 35.3110035513056, 136.792560925311 35.3113122694082)) ^^http://www.opengis.net/ont/geosparql#wktLiteral