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