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