A ubiquitous Olive Garden TV commercial shows a picturesque cooking school in Italy as a voice croons words like "artisanal" and "fonduta" and smiling chefs in starched whites coats taste tomato sauce straight from a simmering pot and kiss their fingertips with glee.

TV-watching skeptics turned to social networking sites like Twitter and Facebook to question the popular Italian chain's claim of "culinary inspiration" from Tuscany. Is this Culinary Institute of Tuscany, a bona fide bastion of learning? Or is it just an advertising fib?

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