Return the names and ids of all products whose price is between 600 and 700.
return products ;return prices of #1 ;return #1 where #2 is at least 600 ;return #1 where #2 is at most 700 ;return #1 in  both #3 and  #4 ;return names of #5 ;return ids of #5 ;return #6 ,  #7
['select', 'project', 'comparative', 'comparative', 'intersection', 'project', 'project', 'union']