メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.756039204094 35.4376448817336, 136.756239831477 35.4380245164379, 136.756598896808 35.4388407188536, 136.756220947374 35.4389748582507, 136.75488883478 35.4386588920833, 136.754972568247 35.4384113383096, 136.754471857789 35.4381510289972, 136.753980620066 35.43789853234, 136.75410916624 35.4375616284056, 136.755878487069 35.4372093621728, 136.755856841346 35.437244428546, 136.755892761802 35.4373297210555, 136.756039204094 35.4376448817336)) ^^http://www.opengis.net/ont/geosparql#wktLiteral