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