If an image shows a sled driver standing behind an empty sled, and only two visible dogs pulling it.
return sled driver ;return sled ;return #2 that is empty ;return dogs ;return #4 that are visible ;return #5 that are pulling #3 ;return number of  #6 for each  #3 ;return #3 where  #7 is equal to  two ;return #1 standing behind #8 ;return if  #9 is in  an  image
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