What is the relationship between 'go90' and 'Verizon' in the context of the input sentence.
Options: manufacturer, location of formation, owned by, legal form

Publicis Groupe , the world’s third-largest advertising group, has signed on for a yearlong ad partnership with go90 starting next month, said executives at AOL, the Verizon unit which is handing advertising sales for the new service.
owned by