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