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