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