メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.028411034481 35.2135779628626, 137.029286274737 35.2136651066568, 137.030678127192 35.2138036828491, 137.03056119581 35.2146586222283, 137.030561011154 35.2146600300208, 137.030465658915 35.2153571070904, 137.030454795316 35.2153560372383, 137.030408570373 35.2157283092231, 137.030401419063 35.2157859065688, 137.02880153853 35.2156220112872, 137.028320900744 35.2155780000948, 137.028085696589 35.215547936233, 137.027922488156 35.2155049985422, 137.027917547346 35.2155031610917, 137.027771553258 35.215448483602, 137.027565755784 35.2153581012682, 137.027381604276 35.215262252696, 137.027275745588 35.2152093823037, 137.027426756563 35.2146616000969, 137.027622575792 35.2139512928581, 137.027743820635 35.213511479843, 137.028400900361 35.2135769640097, 137.028411034481 35.2135779628626)) ^^http://www.opengis.net/ont/geosparql#wktLiteral