prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
prefix leak:  <http://data.ontotext.com/resource/leak/> # ontology
prefix leaks: <http://data.ontotext.com/resource/leaks/> # data

construct {
  ?node a leak:Edge;
    leak:node_1    ?node_1;
    leak:rel_type  ?rel_type;
    leak:node_2    ?node_2;
  }
from <file:../all_edges.csv#encoding=utf-8>
where {
  # ?ROWNUM doesn't work: returns null
  bind(uri(concat(str(leaks:),"edge-",STRUUID())) as ?node)
}