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