Barrick, the largest gold producer, last month announced an arrangement with a unit of Royal Gold Inc. for $610 million upfront, plus continuing payments, for gold and silver from its Pueblo Viejo mine in the Dominican Republic.
Refer to the input text as context and select the correct relationship between 'Pueblo Viejo mine' and 'gold' from the available options.
Options: product/material produced, operator, distributed by, creator