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