[ When Hime hears 'canons', she thinks 'cannons'. Which is why, when she hears Konata talking, she can't help but turn around to look because what the heck is that girl talking about with regard to cannons. To Hime's confusion, she doesn't see any sort of cannons or anything around here. Just a girl with shopping bags. ]
b
Those aren't cannons.
[ said in a 'well duh' sort of tone of voice. ]