Different things comes under the umbrella of dimension like its features, functions, uses, benefits etc. You are required to generate different concepts for coca cola new product "Detox Water' by using two dimensional matrix which will give you new product concepts (with figure).

For your understanding, refer to this book (chapter 7 figure 7.7) : https://www.academia.edu/25415016/New_Products_Management_-_Crawford_and_B_1_