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