Siri will reply,"I found a number of restaurants near you."Then you can say,"Hmm.How about hambergers?"Siri remembers that you just asked about restaurants for something to eat,so it will look for KFC restaurant
It's at the weekend where the teacher will likely gravitate towards the fast food joints (McDonalds, KFC, etc) or go in search of Western restaurants or better alternatives to the weekday school lunches and footpath offerings. And why shouldn't you treat yourself at weekends? If you can't...