[From string (line 13) ]          
                                  
@startuml                         
robust "Main Switch" as MainSwitch
MainSwitch is Off                 
                                  
@0  as :On                        
@5  as :Off                       
                                  
@:On                              
MainSwitch is On                  
@:Off                             
MainSwitch is Off                 
                                  
MainSwitch@:On <-> @:OffBad : tOn 
^^^^^                             
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