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