 
          Meanwhile, a robot named TUG scoots
        
        
          all around hospital floors. This boxy robot
        
        
          can bring a meal. It can take out trash.
        
        
          It can carry medicine. First, a person loads
        
        
          TUG. Then they tap a touch screen to
        
        
          tell the robot where to go. TUG maps
        
        
          out its own route. It uses wi-fi to call
        
        
          elevators. Its sensors make sure it does not
        
        
          run into people.
        
        
          Yes. It says a few things. If you are in its
        
        
          way, it will say, “Please stand aside.”
        
        
          A
        
        
          19