メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.911799022637 35.2879586498706, 136.913530907155 35.2872322760707, 136.913947979189 35.2881299330616, 136.914171720325 35.2885588628971, 136.914467428864 35.2891292831876, 136.914790600167 35.289750536454, 136.914840416309 35.2898131770512, 136.914696138858 35.2898541444521, 136.913350884929 35.2902364797195, 136.912130149256 35.2906165291018, 136.910796852736 35.2910259754475, 136.910222619041 35.2900660009811, 136.909797033786 35.2893709224151, 136.909691109181 35.2892754832292, 136.909488578105 35.2889501139953, 136.911799022637 35.2879586498706)) ^^http://www.opengis.net/ont/geosparql#wktLiteral