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