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