In 1911, the province was divided into five districts, the chief towns of which were Fergana, capital of the province (8,977 inhabitants in 1897); Andijan (49,682 in 1900); Kokand (86,704 in 1900); Namangan (61,906 in 1897); and Osh (37,397 in 1900); but Marghelan (42,855 in 1900) and Chust, Uzbekistan (13,686 in 1897) were also towns of importance.. What were the names of the five districts?