メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.458802753828 34.6223906916971, 136.458141737656 34.6219848343444, 136.457947811598 34.6219038664402, 136.457642739893 34.6218369792236, 136.456752691774 34.6217042533772, 136.456470334131 34.6216388277744, 136.455956780097 34.6214689062852, 136.456314738978 34.6171233272775, 136.459885860811 34.6173217245497, 136.459596272807 34.6192087983826, 136.459488328712 34.6205366644399, 136.459657233842 34.6205530705965, 136.459487173091 34.6214470362346, 136.459384203921 34.6214372831577, 136.459348514942 34.6216858918565, 136.458802753828 34.6223906916971)) ^^http://www.opengis.net/ont/geosparql#wktLiteral