Refer to the input text as context and select the correct relationship between 'Goldcorp' and 'gold' from the available options.
Options: operator, product/material produced, currency, director/manager

It is managed by a joint venture between two of the world’s largest gold producers, with Barrick owning 60% and responsible for operations and Goldcorp Inc. (“Goldcorp”) owning the remaining 40%.
product/material produced