メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.826178748665 35.5137553391902, 137.825849582681 35.5139238429166, 137.825675043948 35.5136822778069, 137.825338142655 35.5138488006569, 137.825160536784 35.5136240481393, 137.825509273602 35.5134479797619, 137.825751484265 35.5132753632922, 137.825880222365 35.5134631531546, 137.826019574299 35.5133912595135, 137.826064876193 35.5134479188755, 137.825993953305 35.5134836122434, 137.826178748665 35.5137553391902)) ^^http://www.opengis.net/ont/geosparql#wktLiteral