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