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