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