Task: Text to Code
Input (English): Step 1: For each row in route table, find corresponding rows in train table and in station table.
Step 2: find name, network_name of the results of step 1 whose network_name equals Chiltern
Output (English): SELECT T1.name , T2.network_name FROM train AS T1 JOIN station AS T2 JOIN route AS T3 ON T1.id = T3.train_id AND T3.station_id = T2.id WHERE T2.network_name = "Chiltern"