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