メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.760421467687 35.4075235641053, 136.760322356015 35.4075282334326, 136.760416327661 35.4073217925563, 136.760912104015 35.4069106404241, 136.761209336497 35.406925291597, 136.761139500722 35.4072079378887, 136.761674017421 35.4072886585236, 136.761658115432 35.4074932472265, 136.760421467687 35.4075235641053)) ^^http://www.opengis.net/ont/geosparql#wktLiteral