If at least one paper roll stand is made of black horseshoes, and at least one holds a roll horizontally.
return paper roll stands ;return horseshoes ;return #2 that are black ;return #1 made of #3 ;return number of  #4 ;return if  #5 is at least one ;return roll ;return #1 that hold #7 horizontally ;return number of  #8 ;return if  #9 is at least one ;return if  both  #6 and #10 are true
['select', 'select', 'filter', 'filter', 'aggregate', 'boolean', 'select', 'filter', 'aggregate', 'boolean', 'boolean']