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