メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.38545609093 34.7454600853597, 137.385482977514 34.7452374715372, 137.385505175562 34.7450972718733, 137.385545570631 34.7449414065841, 137.38556850323 34.7447652950228, 137.385712543744 34.7445862989153, 137.385888531779 34.7451199954251, 137.385709624133 34.7452310237931, 137.385633288105 34.7452336913274, 137.385649955803 34.7454551033468, 137.38545609093 34.7454600853597)) ^^http://www.opengis.net/ont/geosparql#wktLiteral