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