If there is at least one vase with white flowers in it sitting on a table.
return vase ;return flowers ;return #2 that are white ;return #1 with #3 ;return table ;return #4 sitting on #5 ;return the  number of  #6 ;return if  #7 is at least one
['select', 'select', 'filter', 'filter', 'select', 'filter', 'aggregate', 'boolean']