This document discusses countries, nationalities, and languages. It defines a country as a tract of land inhabited by people of one or several nations, emphasizing physical boundaries. A nation emphasizes a shared history and culture among a community. Language is defined as a system of words common to a people within the same geographical area or cultural tradition. The document also notes that nationality is a formal word used more in writing, and that when asking about origin, people usually say "Where are you from?" rather than stating their nationality.