メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.41200405535 43.7677548781956, 142.41274172149 43.7677040209521, 142.41281762669 43.7686504474621, 142.412098266858 43.7686979569411, 142.409967604695 43.7688071940488, 142.409491028407 43.7688211244264, 142.408801275983 43.7688562838346, 142.408753017262 43.7684156072866, 142.408723298709 43.7681442610227, 142.40872280993 43.7681398115006, 142.408699937956 43.7679264514564, 142.409406096055 43.7679079364403, 142.410551595124 43.7678465795614, 142.41200405535 43.7677548781956)) ^^http://www.opengis.net/ont/geosparql#wktLiteral