Show all train names and times in stations in London in descending order by train time.
return stations ;return #1 in   London ;return trains of #2 ;return names of #3 ;return times of #3 ;return #4 ,  #5 ;return #6 sorted by #5 in   descending order
['select', 'filter', 'project', 'project', 'project', 'union', 'sort']