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