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