code: def load_plan(self, fname):    
          
          with open(fname, "r") as f:
              for line in f:
                  if line != '': 
                      tpe, txt = self.parse_plan_from_string(line)
                      #print('tpe= "' + tpe + '"', txt)
                      if tpe == 'name':
                          self.name = txt
                      elif tpe == 'version':
                          self.plan_version = txt
                      elif tpe == 'belief':
                          self.beliefs.add(txt)
                      elif tpe == 'desire':
                          self.desires.add(txt)
                      elif tpe == 'intention':
                          self.intentions.add(txt)
docs: read the list of thoughts from a text file