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.

Ex Input:
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.


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


Ex Input:
Question: Which of the teams Dale played for was founded first? Passage:The Calgary Flames selected him in the eighth round, 182nd overall at the 1981 NHL Entry Draft, and he began his professional career in 1983–84 with a 30-point season for the Colorado Flames of the Central Hockey League (CHL). He then spent the majority of three seasons in the American Hockey League (AHL) with the Moncton Golden Flames. He was named to the AHL second All-Star Team in 1984–85, and served as captain of the Golden Flames in 1985–86. DeGray appeared in one NHL game that season, making his NHL debut with Calgary on March 6, 1986, against the New York Rangers. He played a part-time role in Calgary in 1986–87; in 27 games with the Flames, DeGray scored six goals and seven assists.


Ex Output:
The Calgary Flames selected him in the eighth round, 182nd overall at the 1981 NHL Entry Draft, and he began his professional career in 1983–84 with a 30-point season for the Colorado Flames of the Central Hockey League (CHL)


Ex Input:
Question: In what year was the Civil War Unknowns Monument built? Passage:The establishment of Decoration Day as an official government holiday (by proclamation, not by law) swiftly occurred, and the holiday was almost immediately a popular one. At Arlington cemetery, the number of people attending the annual event swiftly overwhelmed the limited facilities. The first Decoration Day event was held in front of Arlington House. James A. Garfield, a former Major General in the Union Army (and future President of the United States), addressed a "large crowd" from the mansion's back steps. The following year, President Ulysses S. Grant closed the federal government for the holiday, and most businesses followed, which greatly contributed to attendance at the cemetery. A dais seating 400 people was erected in what remained of "the Grove" at the rear of Arlington House to accommodate speakers and dignitaries—which, for the first time, included President Grant. The Civil War Unknowns Monument, which was located south-southwest of Arlington House, was covered by a canopy. Several American flags hung from the canopy, red-white-and-blue bunting was draped along the monument's top, and numerous floral tributes were laid against it. An estimated 25,000 people attended the event throughout the day. Two sites for ceremonies were used in 1870. A very large speakers' dais was erected near the Sheridan Gate and McClellan Gate on the cemetery's east side, and used for speeches throughout the day. For the more important speakers, a second dais seating 200 was erected at the rear of Arlington House (although not with "the Grove"). A stand, permitting the seating of 500, was built nearby for a grand chorus (which sang for the crowd). Again, the Civil War Unknowns Monument was canopied and decorated. About 20,000 people attended the event that year, with rain keeping the numbers low. In 1871, the speakers' dais moved back to "the Grove" and expanded to accommodate 300 people. Frederick Douglass, the former African American slave and abolitionist, was the featured speaker that year. "Hundreds" of people attended his address, including President Grant. The dais moved again in 1872, this time to a location a few yards to the south of the Civil War Unknowns Monument. The dais was slightly reduced in size so that it only sat 200, but it now included a thrust on which stood a speaker's podium. More than 5,000 people attended the 1872 event.


Ex Output:

The Civil War Unknowns Monument, which was located south-southwest of Arlington House, was covered by a canopy