If one of the people on the sleds is wearing a bright blue coat.
return people ;return sleds ;return #1 that are on #2 ;return coat ;return #4 that is bright blue ;return #3 that is wearing #5 ;return number of  #6 ;return if  #7 is equal to  one
['select', 'select', 'filter', 'select', 'filter', 'filter', 'aggregate', 'boolean']