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