Achieves
            
          
            
              purpose
            
          
            
              of
            
          
            
              supporting
            
          
            
              a
            
          
            
              person
            
          
            
              over
            
          
            
              the
            
          
            
              ground
            
          
            
              in
            
          
            
              a
            
          
            
              sitting
            
          
            
              position
            
          
            
              but
            
          
            
              proves
            
          
            
              to
            
          
            
              be
            
          
            
              uncomfortable
            
          
            
              later.
            
          
        
        
        
      
      
    












