メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.209012883824 34.7140879634669, 135.20953342772 34.7142757801998, 135.209462313356 34.7145196907271, 135.209312848 34.7150977112904, 135.20898062999 34.7149107923091, 135.208675823135 34.7147349437136, 135.208360053727 34.7145546658134, 135.207928928359 34.714305351851, 135.207799854654 34.7142296539966, 135.206959184494 34.713706075143, 135.207317115707 34.7134848970959, 135.208193829984 34.713803128612, 135.209012883824 34.7140879634669)) ^^http://www.opengis.net/ont/geosparql#wktLiteral