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