instruction: Your goal is to find the secret two-color code. The following colors are possible: purple, red, white, pink.
  Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.
  
  Previous Guesses:
  Guess: ['white', 'purple']. Hint: one color is in the correct position.
  Guess: ['red', 'purple']. Hint: one color is in the correct position.
  Guess: ['purple', 'purple']. Hint: one color is in the correct position.