Original sentence: In languages other than Dutch, including English, Holland is used as a common but technically incorrect synonym for the Netherlands as a whole.Strictly speaking, it refers only to the central-western part of the country, which consists of two of the country's twelve provinces: North Holland and South Holland
Edited sentence: In languages other than Dutch, including English, Holland is commonly and incorrectly used as a synonym for the Netherlands as a whole, while actually it just refers to the central-western part of the country.This part consists of two of the country's twelve provinces, namely North Holland and South Holland