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