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