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