What is the relationship between 'Equinix' and 'data center' in the context of the input sentence.
Options: employer, location of formation, operator, product/material produced

Quotes Chris Sharp, vice president, cloud innovation, Equinix: "By providing direct access to Azure via ExpressRoute inside Equinix data centers, we are enabling companies to bridge their cloud and data center strategies and fully realize the benefits of hybrid and multi-cloud.
product/material produced