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