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