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