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