Keynes , Aylesbury , Hemel Hempstead , Enfield , London , Hertfordshire , Bedfordshire , Buckinghamshire , Berkshire , Essex , Slough , Newbury , Reading , Oxford , Welwyn , Chelmsford , Northampton , Bedford , Oxfordshire , Slough , Royston .
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
NNP , NNP , NNP NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP , NNP .