Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.
Text: 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.
user
product_or_material_produced: Pueblo Viejo mine, gold
assistant