The conversation between human and AI assistant.
[|Human|] Given a reference text about spaghetti, what shape is it, where did it originate, and are there any variations of it?
[|AI|] The shape of spaghetti is long, thin, and cylindrical. It traditionally comes from Italy and has a two variations - those being Spaghettoni, which is thicker, and capellini, which is thiner and sometime called 'angel hair pasta'.
[|Human|] 
Given a reference text about spaghetti, what shape is it, where did it originate, and are there any variations of it?