Question: In 1682, William Penn founded the city to serve as capital of the Pennsylvania Colony. Philadelphia played an instrumental role in the American Revolution as a meeting place for the Founding Fathers of the United States, who signed the Declaration of Independence in 1776 and the Constitution in 1787. Philadelphia was one of the nation's capitals in the Revolutionary War, and served as temporary U.S. capital while Washington, D.C., was under construction. In the 19th century, Philadelphia became a major industrial center and railroad hub that grew from an influx of European immigrants. It became a prime destination for African-Americans in the Great Migration and surpassed two million occupants by 1950.
Is there an answer to this question: Who founded Philadelphia?

Answer: William Penn


Question: Kinnock then resigned as leader and was replaced by John Smith. Smith's leadership once again saw the re-emergence of tension between those on the party's left and those identified as "modernisers", both of whom advocated radical revisions of the party's stance albeit in different ways. At the 1993 conference, Smith successfully changed the party rules and lessened the influence of the trade unions on the selection of candidates to stand for Parliament by introducing a one member, one vote system called "OMOV" — but only barely, after a barnstorming speech by John Prescott which required Smith to compromise on other individual negotiations.
Is there an answer to this question: What did John Prescott successfully change?

Answer: unanswerable


Question: Water splitting, in which water is decomposed into its component protons, electrons, and oxygen, occurs in the light reactions in all photosynthetic organisms. Some such organisms, including the alga Chlamydomonas reinhardtii and cyanobacteria, have evolved a second step in the dark reactions in which protons and electrons are reduced to form H2 gas by specialized hydrogenases in the chloroplast. Efforts have been undertaken to genetically modify cyanobacterial hydrogenases to efficiently synthesize H2 gas even in the presence of oxygen. Efforts have also been undertaken with genetically modified alga in a bioreactor.
Is there an answer to this question: Where does water splitting occur?

Answer: in the light reactions in all photosynthetic organisms


Question: In the American Old West, policing was often of very poor quality.[citation needed] The Army often provided some policing alongside poorly resourced sheriffs and temporarily organized posses.[citation needed] Public organizations were supplemented by private contractors, notably the Pinkerton National Detective Agency, which was hired by individuals, businessmen, local governments and the federal government. At its height, the Pinkerton Agency's numbers exceeded those of the United States Army.[citation needed]
Is there an answer to this question: What were the Old West's national police options?

Answer:
unanswerable