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