A1 rebutted by A2 on A1
A2 mitigated by A3 on A1
A1   "You will get wet!"   {
    supported by   
    F1   "It is raining   "  
    warranted by  
    DK1   "If it is raining you will get wet     "  
}

A2   "I am fine    "     round     1   {
    supported by  
    F2   "I have a shelter      "     round     1   {
      supported by  
      F3   "I am inside a room       "     round     1  
  }
    warranted by  
    DK2   "One will get wet only if it is raining 
and one does not have a shelter          "   round     1 
   replacing  DK1 with !DK1 & (F1 & !F2 -> A1) 
}

A3   "You still will get wet       "     round     2   {
    supported by  
    F4   "because the roof is leaky         "     round     2  
   warranted by  
    DK3   "Leaky roof removes the shelter       "     round     2    replacing
F2  with !F2
}