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