Utilize the input text as a context reference, choose the right relationship between GMC and truck 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.

GM reintroduced the Chevy Colorado and GMC Canyon midsize trucks last year in a bid to diversify its truck lineup and penetrate an underserved market segment.

Answer: product_or_material_produced