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