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