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