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