A person from Germany is called...
German.
True or false: A person from Colombia is called Colombian.
True!
True or false: Someone from Argentina is Argentinian.
True!
This flag is from...
The United States.
True or false: I am from China. I am Chinisian.
False.
True or false: I am from Italy. I am Italian.
True!
Is this flag from Spain?
Yes, it is from Spain.