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