If some of the mittens or gloves are furry and none of them are being worn.
return mittens ;return gloves ;return #1 , #2 ;return #3 that are furry ;return #3 that are being worn ;return number of  #4 ;return number of  #5 ;return if  #6 is at least two ;return if  #7 is equal to  zero ;return if  both  #8 and #9 are true
['select', 'select', 'union', 'filter', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']