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