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