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