Refer to the input text as context and select the correct relationship between 'Monster Beverage' and 'energy drink' from the available options.
Options: founded by, legal form, product/material produced, brand

Coca-Cola has a track record of minority investments in growth consumer segments, including stakes in coffee company Keurig Green Mountain Inc (GMCR.O), energy drink Monster Beverage Corp (MNST.O) and juice brand Suja Life LLC.
product/material produced