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