Utilize the input text as a context reference, choose the right relationship between Pueblo Viejo mine and Gold 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.

Barrick will deliver silver to RGLD Gold in amounts equal to 75% of Barrick’s interest in the silver produced at the Pueblo Viejo mine beginning on January 1, 2016 until 50.00 million ounces of silver have been delivered, and 37.50% of Barrick’s interest in silver produced thereafter.

Answer: product_or_material_produced