メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.697919859898 35.3348984449787, 136.697384303986 35.3350400227854, 136.696900090617 35.3336317048388, 136.696585927743 35.3326591278026, 136.698349543837 35.332275141141, 136.698524757625 35.3327768873018, 136.698802258068 35.3332225510781, 136.698349137741 35.333309805598, 136.698505285047 35.3338176047126, 136.698506917712 35.3340567707328, 136.698731304918 35.3344366641528, 136.698414488882 35.3346929720489, 136.698204850833 35.3348118764254, 136.698116431592 35.3348476595952, 136.697919859898 35.3348984449787)) ^^http://www.opengis.net/ont/geosparql#wktLiteral