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