A person from Spain is ...
Spanish
A person from Argentina is ...
Argentinian
A person from China is ...
Chinese
A person from the USA is ...
American
A person from Russia is ...
Russian
A person from Brazil is ...
Brazilian
A person from Turkey is ...
Turkish
A person from Germany is ...
German
A person from Poland is ...
Polish
A person from Canada is ...
Canadian
A person from the UK is ...
British
A person from France is ...
French
A person from Japan is ...
Japanese
A person from Italy is ...
Italian
A person from Portugal is ...
Portuguese