メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.216927985489 35.0767855202742, 135.216933055871 35.0772552856645, 135.216547650418 35.0772554215776, 135.2155914733 35.0772411962027, 135.214848705973 35.0772206202495, 135.214843312901 35.0771810802372, 135.214859504849 35.0767596832583, 135.215098775053 35.076760616256, 135.215115974839 35.0762657584792, 135.21693881948 35.0763448650814, 135.216927985489 35.0767855202742)) ^^http://www.opengis.net/ont/geosparql#wktLiteral