// create a model (a.k.a. Triple Store in python)
  Model model=new ModelMem();
  Resource subject=model.createResource("URI_of_Subject")
  // 'in' refers to the input file
  model.read(new InputStreamReader(in));
  StmtIterator iter=model.listStatements(subject,null,null);
  while(iter.hasNext()) { 
     st = iter.next();
     p = st.getProperty();
     o = st.getObject();
     do_something(p,o);
  }