メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.046396405407 35.3931079762766, 137.046547189937 35.3931579170842, 137.046700375489 35.3932198325936, 137.046585148348 35.3933689401578, 137.046093393569 35.3939882994144, 137.045709353832 35.39453283611, 137.04542613743 35.3944286036297, 137.043750812242 35.3938318140812, 137.043506133942 35.393725645629, 137.043572566327 35.3932455758126, 137.043709532846 35.3927714939447, 137.043721912174 35.392632071133, 137.043718762151 35.3922983362131, 137.043730982869 35.3922644758611, 137.04401752137 35.3921122371171, 137.044204966355 35.3923222189548, 137.046396405407 35.3931079762766)) ^^http://www.opengis.net/ont/geosparql#wktLiteral