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