===== Template engine =====

Konverze z dialogovych aktu do stringu, ciste pravidlova.


==== Dialogove akty ====

Druhy:
  * ack  - "Ok" - back channel 
  * affirm  - simple "Yes" 
  * apology - apology for misunderstanding 
  * bye  - end of a dialogue – simple "Goodbye" 
  * confirm - user tries to confirm some information
  * deny   - user denies some information
  * hangup - the user hangs up
  * hello  - start of a dialogue – simple "Hi" 
  * help  - request for help
  * inform - user provide some information or constraint
  * negate  - simple "No" 
  * null  - silence, empty sentence, something that is not possible to    interpret, does nothing
  * repeat  - request to repeat the last utterance
  * reqalts  - ask for alternatives 
  * reqmore  - ask for more details 
  * request - user requests some information
  * restart  - request to restart
  * select - user or the system wants the other party to select between    two values for one slot
  * thankyou - simply thank you 

Nektere muzou mit promenne, name:value. Navic muzou existovat i sjednoceni.

==== Schema ====
                    vnejsi promenne (vyrecnost etc.)
                          `v
  dialogovy akt   ->     model   -> string / strom - >>>> surface realization
                         ^   ^
    parser dat. formatu--'    \  
      YAML                     `-- inference
      JSON                         (spojovani, zamlcovani)
      Python code                   
      symbolic strings


==== Mapa aktu (model) - reprezentace ====

Tuple:
  * **input** -- seznam dialogovych aktu, pro kazdy:
    * typ aktu (string)
    * parametry (dictionary -- name:value)
  * **output** -- cokoli, cemu bude rozumet surface realizator, ten to musi dostat spolu s promennymi. Vzdy se zas bude jednat o seznam, ne nutne stejne dlouhy jako predtim.
    * //stringy//: ''The @entity is $entity.''
    * //stromy//: Nejak vkladat promenne do stromu