Input question: Vientiane is the capital of which Asian country?

Output answer: laos

Input question: US President Herbert Hoover belonged to which political party?

Output answer: republican party

Input question: Due to the number of its population which country is known as the "Giant of Africa"?

Output answer: nigeria

Input question: Nephrite, Ca2(Mg, Fe)5Si8O22(OH)2, is one of two minerals more commonly known as what anciently treasured green gemstone, and once considered China's 'imperial gem'?

Output answer:
jade