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