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