LESSON          1 
               LESSON          2  
               LESSON          3  
               LESSON          4 
                 LESSON          5
                  
               LESSON          6  
               LESSON          7 
               LESSON          8
                
               LESSON          9  
               LESSON          10 
               LESSON          11
                
               LESSON          12 
               LESSON          13 
               LESSON          14 
               LESSON          15
                
               LESSON          16 
               LESSON          17 
               LESSON          18 
               LESSON          19 
               LESSON          20 
               LESSON          21 
               LESSON          22 
               LESSON          23 
               LESSON          24 
               LESSON          25 
               LESSON          26 
               LESSON          27 
               LESSON          28
                
               LESSON          29  
               LESSON          30 
               LESSON          31 
               LESSON          32
                
               LESSON          33  
               LESSON          34 
               LESSON          35
                
               LESSON          36  
               LESSON          37 
               LESSON          38 
               LESSON          39 
               LESSON          40
 
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