document
  prefix rdf <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
  prefix ex <http://example.org/>
  prefix var <http://openprovenance.org/var#>
  prefix tmpl <http://openprovenance.org/tmpl#>
  prefix foaf <http://xmlns.com/foaf/0.1/>
  
  used(var:prov-1724683579705-9386, var:prov-1724683607960-8188, -)
  agent(var:prov-1724683642619-9259, [prov:description="AI engineer", foaf:name="ABC", prov:type="foaf:person"])
  wasGeneratedBy(tmpl:new python dataset, var:prov-1724683607960-8188, -)
  activity(var:prov-1724683607960-8188, 2024-08-25T00:00:00, 2024-08-26T00:00:00, [prov:description="improve accuracy", foaf:name="processing"])
  entity(var:prov-1724683579705-9386, [prov:version="1", prov:location="london", xsd:date="2024-08-26", prov:description="face recog", foaf:name="python dataset", prov:type="tmpl:dataset"])
endDocument