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