What is a brand? For our purposes, a brand is a product line that has its own identity. There may be different products within that brand but they share an identity (e.g., Coca Cola, Diet Coke, Coca Cola Zero, and Coca Cola Cherry are Coca Cola are carbonated soft drinks owned by Coca Cola under the brand name Coca Cola.)
Sprite and Fanta, fall under the same product line, carbonated beverages and are also owned by Coca Cola, but are each separate brands with their own identity (and market in some cases.)
We want to separate brands, not product lines.