Data: Addis Ababa City Hall, completionDate, 1964; Addis Ababa City Hall, floorArea, 140000.0 (square metres)

Addis Ababa City Hall was completed in 1964 and has a floor area of 140000.0 square metres.

Data: ALV X-1, countryOrigin, United States; United States, ethnicGroup, Native Americans in the United States

ALV X-1 hails from the US, where there is an ethnic group called Native Americans.

Data: William Anders, title, United States Ambassador to Norway
United States's Ambassador to Norway is William Anders.