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