メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.802881221736 35.2594361078273, 136.802856269983 35.2604424681786, 136.802849370689 35.2607207274425, 136.799610519921 35.2608070802028, 136.799665196252 35.2610284418231, 136.79918169811 35.2611231018606, 136.799110820757 35.2609621128182, 136.798774192384 35.2610376393826, 136.798568880115 35.2610215933945, 136.798257870729 35.2610241684772, 136.798323567147 35.2613702103633, 136.797971914631 35.2612475213796, 136.797433786337 35.2612613036361, 136.796795165093 35.2612742097676, 136.796823781439 35.2607060639428, 136.796852184289 35.2600341159205, 136.79648332715 35.260043616137, 136.796440399746 35.2589936361576, 136.797455137865 35.2589653360308, 136.798418528177 35.2589410130028, 136.80290222044 35.2587872287768, 136.80290233698 35.2588279339241, 136.802881221736 35.2594361078273)) ^^http://www.opengis.net/ont/geosparql#wktLiteral