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