Input question: Which opera contains the famous Anvil Chorus in its second act?

Output answer: il trovatore

Input question: Selenophobia is the abnormal fear of which celestial body?

Output answer: moon

Input question: "The 1987 record ""La Bamba"" was by which artist?"

Output answer: los lobos

Input question: Lafarge, Holcim, and Heidelberg are among the world's leading producers of?

Output answer:
cement