What are the names and ids of products costing between 600 and 700?
return products ;return cost of  #1 ;return #1 where #2 is  at least 600 ;return #1 where #2 is  at most 700 ;return #1 of  both #3 and  #4 ;return names of  #5 ;return ids of  #5 ;return #6 ,  #7
['select', 'project', 'comparative', 'comparative', 'intersection', 'project', 'project', 'union']