In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

[Q]: Question: When did Ventspils stop being a part of the Russian Empire? Passage:Spāde was born into a fisherman's family in Ventspils, then part of the Russian Empire, in 1891. He was trained as a mechanical engineer at the Riga Polytechnic Institute, which he graduated in 1914. He was drafted in the Imperial Russian Baltic Fleet at the outset of World War I. He advanced from a position of michman to that of a torpedo boat commander and ended up as a commanding officer at the Black Sea Navy Brigade Headquarters in Batumi, where he married a Georgian woman in 1917. After the fall of the Russian Empire, he joined the navy of the People's Republic of Ukraine in early 1918 and, following a peace treaty between Ukraine and the Central Powers, pledged his loyalty to the Democratic Republic of Georgia. In Georgian service Spāde commanded a detachment of cutters in Batumi. In June 1918, the Ottoman troops took control of Batumi and made the town's garrison, including Spāde, captive. Released in October 1918, Spāde joined the ranks of the Armed Forces of South Russia, a White party to the Russian Civil War. He was promoted to Senior Lieutenant and put in charge of the Sevastopol port. In March 1920, Spāde, together with the defeated White forces, was evacuated to Constantinople, where he accepted Latvian citizenship and returned to Latvia with his wife.

[A]: Spāde was born into a fisherman's family in Ventspils, then part of the Russian Empire, in 1891


[Q]: Question: Which of the Churchill brothers died first? Passage:Lady Eden was born in 1920, the daughter of Major Jack Spencer-Churchill (1880–1947), the younger brother of Winston Churchill, by his marriage to Lady Gwendoline ("Goonie") Bertie (1885–1941), a daughter of the 7th Earl of Abingdon, who had been married in 1908. She is thus a niece of Winston Churchill, who was Prime Minister during the Second World War, and a granddaughter of Lord Randolph Churchill, Chancellor of the Exchequer 1886–87, and his wife the American society beauty Jennie Jerome. Her paternal great-grandfather was the 7th Duke of Marlborough, and her maternal great-great-grandfather the 3rd Marquess of Londonderry, half-brother of the 2nd Marquess, who, as Viscount Castlereagh was Foreign Secretary during the Congress of Vienna of 1815 that followed the Napoleonic Wars.

[A]: Lady Eden was born in 1920, the daughter of Major Jack Spencer-Churchill (1880–1947), the younger brother of Winston Churchill, by his marriage to Lady Gwendoline ("Goonie") Bertie (1885–1941), a daughter of the 7th Earl of Abingdon, who had been married in 1908


[Q]: Question: Which city had a greater population the year Bergstrom began his architectural practice, New York City or Los Angeles? Passage:Edwin Bergstrom studied architecture at the Massachusetts Institute of Technology and at Yale University. He began his architectural practice in New York City in 1899 and then moved to Los Angeles in 1903. He partnered with John Parkinson soon after arriving in Los Angeles. After leaving the partnership with Parkinson, Bergstrom oversaw a successful solo practice. In the 1920s and 1930s, Bergstrom was associated with the Pasadena architectural firm of Bennett and Haskell. He won a design competition in 1923 to design the City of Pasadena Civic Auditorium, which anchors the south end of the city's civic center. In the late 1920s, Bergstrom was one of five prominent Los Angeles architects, organized as the Allied Architects of Los Angeles, involved in designing the Los Angeles County/USC Medical Center General Hospital (1933), an architectural monument in East Los Angeles. Bergstrom was commissioned as the chief consulting architect for the United States War Department in 1941. In this capacity, he served as the chief architect for the Pentagon in Washington, D.C. (1941–43). Bergstrom was also actively involved in the American Institute of Architects (AIA), serving as the national organization's treasurer for over 40 years and as president in 1939 and 1940. During their partnership, Parkinson & Bergstrom became the dominant architectural firm hired to design major buildings in Los Angeles. This prominent partnership designed over 25 buildings in the 10 years of their collaboration, with the majority located in the city's burgeoning downtown. Besides the Metropolitan Building, there are four other Parkinson & Bergstrom buildings located within the boundaries of the Broadway Commercial and Entertainment Historic District. As is evidenced in the Metropolitan Building, Parkinson & Bergstrom commercial buildings typically reflect influences of the Beaux Arts or Classical Revival styles popular at the turn of the century with exterior use of glazed terra cotta, decorative spandrel panels, low relief sculptural ornamentation, and large projecting cornices.

[A]:
He began his architectural practice in New York City in 1899 and then moved to Los Angeles in 1903