Input question: What relationship was shared by actors Danny DeVito and Arnold Schwarzenegger in their 1988 film, directed by Ivan Reitman?

Output answer: twins

Input question: What is caused by the gravitational pull of the Moon and Sun on Earth?

Output answer: tides

Input question: The IWC, established in 1946, is the International ... what ... Commission?

Output answer: whaling

Input question: Who was the first reigning British monarch to reside at Buckingham Palace?

Output answer:
queen victoria