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