+--> Fizika
  | | |--> 1C
  | | |--> 2C
  | | |--> 4A
  | | |--> 4C
  | | |--> 1A
  | | |--> 1B_ZIM
  | | ---> 3A
  | | | +--> DPPR
  | | +--> 3B
  | | +--> 3C
  | | +--> 4A
  | | ---> 4C
  | |     +--> 1dio
  | |     |--> 3 dio
  +--> TZK