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