user: Question: Name the RR numbers of Hudswell Clarke and years before 1914
Columns: ['Year', 'RR class', 'RR Nos.', 'Builder', 'Builder Nos.', 'GWR/BR Nos.']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1910.0, 'A', '10–14', 'Robert Stephenson & Co.', '3387–3391', '52–56']
SQL:

assistant: SELECT "RR Nos." FROM "Table" WHERE "Builder" = 'Hudswell Clarke' AND "Year" < 1914.0;