メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.83343646089 34.9346946033422, 136.835287862126 34.9345234235545, 136.835600085756 34.9365444422023, 136.832545958027 34.9368683005506, 136.832534285171 34.9367727745355, 136.832364669751 34.9360653236321, 136.832352944838 34.9359881069783, 136.832362488711 34.9356896781122, 136.832351666891 34.9356162670455, 136.832339075187 34.9355154559738, 136.832215966998 34.9352356745291, 136.832170094682 34.9351118832768, 136.832082808047 34.9349200191005, 136.832023839667 34.9348252064543, 136.832915946549 34.9347427444297, 136.83343646089 34.9346946033422)) ^^http://www.opengis.net/ont/geosparql#wktLiteral