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