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