Utilize the input text as a context reference, choose the right relationship between Citizen Lab and University of Toronto 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.

As early as 2014, a report by the Citizen Lab at the University of Toronto indicated that Hacking Team’s products were used in Ethiopia, Sudan, Oman, Egypt and elsewhere.

Answer: headquarters_location