A Fortress of Grey Ice is from the United States, where you will find an ethnic group called the Native Americans. English is the language of the United States and also the language spoken in Great Britain.
[['United States', 'LANGUAGE', 'English language'], ['English language', 'SPOKEN_IN', 'Great Britain'], ['A Fortress of Grey Ice', 'COUNTRY', 'United States'], ['United States', 'ETHNIC_GROUP', 'Native Americans in the United States']]