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