If there are two phones and one of them is ovalish.
return phones ;return number of #1 ;return If #2 is  equal to two ;return #1 that is  ovalish ;return number of #4 ;return If #5 is  equal to one ;return If both  #3 and #6 are  true
['select', 'aggregate', 'boolean', 'filter', 'aggregate', 'boolean', 'boolean']