East Midlands English is a dialect, including local and social variations spoken in most parts of East Midlands England. It generally includes areas east of Watling Street (which separates it from West Midlands English), north of an isogloss separating it from variants of Southern English (e.g. Oxfordshire) and East Anglian English (e.g. Cambridgeshire), and south of another separating it from Northern English dialects (e.g. Yorkshire). This includes the counties of Derbyshire, Leicestershire, Lincolnshire, Nottinghamshire, Rutland and Northamptonshire. Dialects of northern Derbyshire, Nottinghamshire and Lincolnshire usually share similarities with Northern English dialects. Relative to other English dialects, there have been relatively few studies of East Midlands English.