メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.276141459867 36.7561157244109, 137.276145768 36.7561300842397, 137.276338000735 36.7568056885755, 137.275862167587 36.7569035079466, 137.274764631434 36.7571091355825, 137.274538342348 36.7564574977034, 137.274111743927 36.756543647805, 137.273651868719 36.7566364455361, 137.273349673666 36.7557356983605, 137.273328690355 36.7556712917243, 137.273850367012 36.7555649206104, 137.27480629038 36.7553704898956, 137.274713136089 36.7551782180735, 137.275655327502 36.7549702734, 137.276003477037 36.755656083664, 137.276141459867 36.7561157244109)) ^^http://www.opengis.net/ont/geosparql#wktLiteral