+--> Fizika
  | | |--> 1A
  | | |--> 1B_ZIM
  | | +--> 3A
  | | +--> 3B
  | | +--> 3C
  | | +--> 4A
  | | +--> 4C
  +--> TZK
    | |--> 2b
    | |--> 3b
    | +--> 4b
    |--> MPT_3B
    |--> MPT_4B