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