メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.078205029375 43.542837809609, 142.078314505907 43.5432303507192, 142.078761451484 43.5448328711036, 142.078179599871 43.5449240993106, 142.077217707207 43.5451029581347, 142.075628781858 43.540746812511, 142.076342117824 43.5407816081858, 142.076495624809 43.540781846553, 142.077521436522 43.5407834341535, 142.078065614399 43.5408282952666, 142.078360546118 43.5408325814518, 142.078579675111 43.5408290849607, 142.078093974553 43.5418106256037, 142.078002034396 43.5420593615181, 142.078205029375 43.542837809609)) ^^http://www.opengis.net/ont/geosparql#wktLiteral