メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.302811303167 44.373380770888, 143.297394007483 44.3702925714424, 143.298154933238 44.3696249636882, 143.301644581976 44.3665663869615, 143.301683575989 44.3665325582534, 143.304005833296 44.3678692236672, 143.307095922546 44.3696632961618, 143.306180201309 44.3705101445131, 143.306046184237 44.3705801856637, 143.305789707798 44.370632584489, 143.305702829296 44.3706584185234, 143.305690638022 44.3707054648155, 143.305709994688 44.3708116344475, 143.305685061303 44.3708806669002, 143.305607974052 44.3709658252888, 143.302811303167 44.373380770888)) ^^http://www.opengis.net/ont/geosparql#wktLiteral