If 'air' is called 'green', is called 'red', 'red' is called 'sea', is called 'blue', 'blue' is called 'water' and 'water' is called 'pink', then what is the color of grass?

প্রশ্নঃ If 'air' is called 'green', is called 'red', 'red' is called 'sea', is called 'blue', 'blue' is called 'water' and 'water' is called 'pink', then what is the color of grass?