examples/tables/tsv/feta_10004.tsv

City	New numbering	Old numbering
Leeds	(0113) 2xx xxxx	(0532) xxxxxx
Sheffield	(0114) 2xx xxxx	(0742) xxxxxx
Nottingham	(0115) 9xx xxxx	(0602) xxxxxx
Leicester	(0116) 2xx xxxx	(0533) xxxxxx
Bristol	(0117) 9xx xxxx	(0272) xxxxxx