メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.394128636274 38.4413745264764, 140.39421792286 38.441469319011, 140.394296906886 38.4416033477789, 140.39434867829 38.4417157367816, 140.394512367293 38.4422536777722, 140.39377768982 38.4424216857746, 140.393329541809 38.4418826788767, 140.392901077791 38.4421562814222, 140.392597156878 38.4418709220132, 140.393123681089 38.4415724889339, 140.393883983447 38.4411302156175, 140.394128636274 38.4413745264764)) ^^http://www.opengis.net/ont/geosparql#wktLiteral