Table schema:
CREATE TABLE train_station (station_id VARCHAR, train_id VARCHAR); CREATE TABLE station (station_id VARCHAR, location VARCHAR); CREATE TABLE train (name VARCHAR, time VARCHAR, train_id VARCHAR)

Question: Show all train names and times in stations in London in descending order by train time.
SQL: 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