Take context from the input text and decide on the accurate relationship between 'Pueblo Viejo mine' and 'gold' from the options provided.
Options: product/material produced, platform, distributed by, currency

Barrick will deliver gold to RGLD Gold in amounts equal to 7.50% of Barrick’s interest in the gold produced at the Pueblo Viejo mine from July 1, 2015 until 990,000 ounces of gold have been delivered, and 3.75% of Barrick’s interest in gold produced thereafter.
product/material produced