instruction: Find names of trains that run through stations for the local authority Chiltern, compare the total number of name in a bar graph, and display by the Y from high to low.
response: SELECT name, COUNT(name) FROM station AS t1 JOIN route AS t2 ON t1.id = t2.station_id JOIN train AS t3 ON t2.train_id = t3.id WHERE t1.local_authority = "Chiltern" GROUP BY name ORDER BY COUNT(name) DESC