Show all train names and times in stations in London in descending order by train time.
SELECT T3.name ,  T3.time FROM train_station AS T1 JOIN station AS T2 ON T1.station_id  =  T2.station_id JOIN train AS T3 ON T3.train_id  =  T1.train_id WHERE T2.location  =  'London' ORDER BY T3.time DESC
SELECT T3.name ,  T3.time FROM train_station AS T1 JOIN station AS T2 ON T1.station_id  =  T2.station_id JOIN train AS T3 ON T3.train_id  =  T1.train_id WHERE T2.location  =  'London' ORDER BY T3.time DESC
[{'Name': 'Guruvayur Express', 'Time': '4:49'}, {'Name': 'Guruvayur Express', 'Time': '22:10'}, {'Name': 'Madurai Fast Passenger', 'Time': '21:49'}, {'Name': 'Ananthapuri Express', 'Time': '17:15'}, {'Name': 'Ananthapuri Express', 'Time': '11:35'}, {'Name': 'Island Express', 'Time': '11:15'}, {'Name': 'Jayanthi Janatha Express', 'Time': '10:38'}, {'Name': 'Jayanthi Janatha Express', 'Time': '06:30'}, {'Name': 'Parasuram Express', 'Time': '04:20'}]