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