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