メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.97847111658 34.6826468429211, 137.978081579906 34.6827189882039, 137.977861342547 34.6827612903132, 137.97757046975 34.6828169528446, 137.977639358479 34.6830474091637, 137.976727605936 34.6833211368729, 137.976745445287 34.683412629964, 137.976272436633 34.6834977934864, 137.976252409683 34.683408544672, 137.976284382932 34.6832530329897, 137.976245962329 34.6830521457028, 137.976150577724 34.6830689216694, 137.976072927144 34.6827481362152, 137.97777180331 34.6824522871781, 137.977780940781 34.6824838784623, 137.978395944002 34.682357903898, 137.97847111658 34.6826468429211)) ^^http://www.opengis.net/ont/geosparql#wktLiteral