HAMBURGER IS A SANDWICH 
Wow I never knew that before!
IS IT! IN CONSIST OF ONE OR MORE COOKED PATTIES OF GROUND MEAT, BEEF, SLICED BREAD ROLL
Oh cool! How can burgers be prepared?
ITS PREPARED BY CHEESE, LETTUCE, TOMATO, BACON
Oh wow that's crazy! Those are some of my favorite burger toppings.
A HAMBURGER TOPPED WITH CHEESE IS CALLED A CHEESEBURGER
That makes sense! You know so much about burgers.
THE TERM HAMBURGER ORIGINALLY DERIVES FROM HAMBURG. GERMANY SECOND LARGEST CITY