Problem: Does "There was also extensive immigration from the German provinces, where revolutions had disrupted societies, and Germans comprised another 25% of New York's population by 1860." answer the question "What events provoked the immigration of people from Germany?"

A: yes

Problem: Does "After the President signs a bill into law (or Congress enacts it over his veto), it is delivered to the Office of the Federal Register (OFR) of the National Archives and Records Administration (NARA) where it is assigned a law number, and prepared for publication as a slip law." answer the question "Who signs a bill into a law?"

A: yes

Problem: Does "In four months, Aonuma's team managed to present realistic horseback riding,[l] which Nintendo later revealed to the public with a trailer at Electronic Entertainment Expo 2004." answer the question "When did the company release a trailer of the horseback riding aspect?"

A:
yes