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