| | `--> 4r
  | | `--> 3c
  | | |--> 2. c
  | | |--> 2. d
  | | |--> 2. e
  | | |--> 3. d
  | | `--> 3. e
  | | |--> 1. B
  | | |--> 1. D
  | | |--> 4. A
  | | |--> 4. B
  | | `--> 4. C
  | | | +--> 1.D
  | | | +--> 3.AB
  | | | +--> 3.E
  | | | +--> 4.C
  | | |--> 3.c
  | | |--> 3d
  | | `--> 3e
  | | +--> Etika
  | | +--> Logika