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