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