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