Task: Question Decomposition
Input (English): question: what river flows the sudan region and into the alantic ocean?
Output (English): #1 return river 
#2 return sudan region 
#3 return alantic ocean 
#4 return #1 that flows in  #2 
#5 return #1 that flows into #3 
#6 return #1 in  both  #4 and #5