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

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