メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.447391076698 35.3723071678162, 136.447224728153 35.3725675011173, 136.446576429917 35.3722943749157, 136.446738921791 35.3720232416124, 136.44668066242 35.3719904337943, 136.446728068389 35.3718849461473, 136.446846532324 35.3719251531892, 136.446909387547 35.3718225737959, 136.447542429416 35.3720702633424, 136.447391076698 35.3723071678162)) ^^http://www.opengis.net/ont/geosparql#wktLiteral