[Q]: Convoy PQ-4 was the fifth of the Arctic Convoys of World War II by which the Western Allies supplied material aid to the Soviet Union in its fight with Nazi Germany. The Convoy sailed from Hvalfjord, Iceland on 17 November 1941 and arrived at Archangelsk on 28 November 1941. Convoy PQ-4 helped Soviets fight Germany
[A]: Yes

[Q]: Frederick Ferdinand of Anhalt-Kothen (25 June 1769, Pless 23 August 1830, Kothen) was a German prince, Ascanian ruler of the principality of Anhalt-Pless and, from 1818, of the duchy of Anhalt-Kothen. He was the second son of Frederick Erdmann, Prince of Anhalt-Pless, and his wife, Louise Ferdinande, daughter of Henry Ernest, Count of Stolberg-Wernigerode. Prince of Anhalt-Pless was born 25 June 1709
[A]: No

[Q]: The Kirsten Flagstad Prize is awarded to outstanding Norwegian singers by the Flagstad Society. The Flagstad Society was founded by Torstein Gunnarson and ystein Gaukstad in connection with the Norwegian soprano Kirsten Flagstad's 80th birthday in 1975, aiming to spread knowledge about Kirsten Flagstad's art and keep her name alive. Kirsten Flagstad was not a singer.
[A]: No

[Q]: Jefferies LLC is an American global investment bank and institutional securities firm headquartered in New York. The firm provides clients with capital markets and financial advisory services, institutional brokerage, securities research, and asset management. This includes mergers and acquisitions, restructuring, and other financial advisory services. Jefferies LLC is an American global investment bank located in the United States
[A]:
Yes