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CREATE TABLE station (
id number ,
network_name text ,
services text ,
primary key ( id )
)
insert into station (id, network_name, services) values (1, Amersham,
Metropolitan line and Chiltern Railways);

CREATE TABLE routes (
train_id number ,
station_id number ,
primary key ( train_id ) ,
foreign key ( station_id ) references station ( id )
)
insert into route (train_id, station_id) values (1,1);

Question: Find the number of trains for each station, as well as the station
network name and services.
Answer: "Find the number of trains" returns 1 column. "Find the number of
trains for each station" returns 2 columns. "Find the number of trains for
each station, as well as the station network name" returns 2 columns. "Find
the number of trains for each station, as well as the station network name
and services" returns 3 columns. The question returns the number of trains,
the station network name and services for each station. So the question
returns 3 columns.
Teaching Large Language Models to Self-Debug