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