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