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