human
Is it better to use a knife or a fork when I eat a sandwich?
assistant
It depends on the type of sandwich you are eating. For example, if you are eating a traditional American-style sandwich, then using a knife and fork is generally recommended as they will help keep your hands clean while you eat. However, for other types of sandwiches such as a panini, a knife may not be necessary. In this case, it's best to use a fork to avoid getting crumbs in your mouth.