Please answer this: Given the following passage "QED vacuum has interesting and complex properties. In QED vacuum, the electric and magnetic fields have zero average values, but their variances are not zero. As a result, QED vacuum contains vacuum fluctuations (virtual particles that hop into and out of existence), and a finite energy called vacuum energy. Vacuum fluctuations are an essential and ubiquitous part of quantum field theory. Some experimentally verified effects of vacuum fluctuations include spontaneous emission and the Lamb shift. Coulomb's law and the electric potential in vacuum near an electric charge are modified.", answer the following question. Note that the answer is present within the text. Question: If we are not talking about zero average values, but different kind of values, what are we talking about?
++++++++
Answer: variances

Please answer this: Given the following passage "Palmerston died in 1865, and after a brief ministry led by Russell, Derby returned to power. In 1866, Victoria attended the State Opening of Parliament for the first time since Albert's death. The following year she supported the passing of the Reform Act 1867 which doubled the electorate by extending the franchise to many urban working men, though she was not in favour of votes for women. Derby resigned in 1868, to be replaced by Benjamin Disraeli, who charmed Victoria. "Everyone likes flattery," he said, "and when you come to royalty you should lay it on with a trowel." With the phrase "we authors, Ma'am", he complimented her. Disraeli's ministry only lasted a matter of months, and at the end of the year his Liberal rival, William Ewart Gladstone, was appointed prime minister. Victoria found Gladstone's demeanour far less appealing; he spoke to her, she is thought to have complained, as though she were "a public meeting rather than a woman".", answer the following question. Note that the answer is present within the text. Question: Who did not favour votes for women?
++++++++
Answer: Victoria

Please answer this: Given the following passage "The United Nations Population Fund (UNFPA), formerly the United Nations Fund for Population Activities, is a UN organization. The UNFPA says it "is the lead UN agency for delivering a world where every pregnancy is wanted, every childbirth is safe and every young person's potential is fulfilled." Their work involves the improvement of reproductive health; including creation of national strategies and protocols, and providing supplies and services. The organization has recently been known for its worldwide campaign against obstetric fistula and female genital mutilation.", answer the following question. Note that the answer is present within the text. Question: What does the U in "UNFPA" stand for?
++++++++
Answer:
United