Your goal is to find the secret four-color code. The following colors are possible: pink, green, yellow, red, purple, brown.
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: ['pink', 'purple', 'yellow', 'brown']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['green', 'pink', 'pink', 'yellow']. Hint: three colors are in the correct positions.
Guess: ['green', 'pink', 'brown', 'yellow']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
A B C D
green, brown, pink, yellow pink, red, yellow, purple pink, pink, yellow, yellow green, brown, pink, red