text: 35_36	77_78	PRECONDITION
  35_36	41	PRECONDITION
  41	77_78	FALLING_ACTION
  66	70_71	FALLING_ACTION
  77_78	89	PRECONDITION
  41	89	FALLING_ACTION
  35_36	89	PRECONDITION
  77_78	88	PRECONDITION
  35_36	39	PRECONDITION
  88	89	FALLING_ACTION
  39	89	FALLING_ACTION
  39	41	FALLING_ACTION
  41	88	PRECONDITION
  35_36	88	PRECONDITION
  39	77_78	FALLING_ACTION
  