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