Utilize the input text as a context reference, choose the right relationship between DHL and Logistics from the options. Options: 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.

Logistics operator Exel, the North American supply chain management unit of Deutsche Post DHL Group, is preparing to what it calls “vision picking” at two U.S. warehouses.

Answer: industry