If one hot air balloon is sitting on a grassy area and one is floating in the air.
return hot air balloon ;return area ;return #2 that is grassy ;return #1 sitting on #3 ;return air ;return #1 floating in  #5 ;return the  number of  #4 ;return the  number of  #6 ;return if  #7 is equal to  one ;return if  #8 is equal to  one ;return if  both  #9 and #10 is true
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