Your goal is to find the secret four-color code. The following colors are possible: green, pink, purple, 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: ['green', 'purple', 'pink', 'red']. Hint: two colors are in the correct positions.
Guess: ['green', 'green', 'purple', 'purple']. Hint: none of the guessed colors are present in the secret code.
Guess: ['pink', 'pink', 'yellow', 'yellow']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['yellow', 'red', 'pink', 'red']. 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
brown, yellow, pink, red red, red, green, pink red, red, purple, yellow red, red, pink, red