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