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