Utilize the input text as a context reference, choose the right relationship between Diet Coke and Coca-Cola from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

However, 55 per cent said they considered it a substitute for Diet Coke and Coke Zero, suggesting that the new brand will cannibalise sales of low-calorie colas rather than generate incremental sales growth and restore volume growth to the brand, as Coca-Cola Amatil hopes.

Answer: brand