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