// 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);
   }