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