query: SELECT sum(Spent) FROM Student JOIN Visits_Restaurant ON Student.StuID = Visits_Restaurant.StuID WHERE Student.Fname = "Linda" AND Student.Lname = "Smith";
question: How long Student Linda Smith one spend restaurant total?
query_toks: SELECT sum ( Spent ) FROM Student JOIN Visits_Restaurant ON Student.StuID = Visits_Restaurant.StuID WHERE Student.Fname = `` Linda '' AND Student.Lname = `` Smith '' ;
query_toks_no_value: select sum ( spent ) from student join visits_restaurant on student.stuid = visits_restaurant.stuid where student.fname = value and student.lname = value
question_toks: How long Student Linda Smith one spend restaurant total?