メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.933437720728 35.1390679104596, 136.933412665956 35.1393461102136, 136.933398898581 35.1394990470327, 136.932284729345 35.1394508027041, 136.93231945062 35.1390014178468, 136.932357578969 35.1385746468833, 136.932702155586 35.1384864470987, 136.932934297283 35.1384270414695, 136.933024874622 35.1384041196345, 136.933508499744 35.1382816116456, 136.933437720728 35.1390679104596)) ^^http://www.opengis.net/ont/geosparql#wktLiteral