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