In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
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Question: Question: In what year did Ostashenko's country join the first world war? Passage:Ostashenko was born on 19 June 1896 in the village of Bolshaya Lyubshchina, Yanovichskoy volost, Vitebsky Uyezd, Vitebsk Governorate to a peasant family. He graduated from four grades at a gymnasium. During World War I, he was mobilized for military service on 7 August 1915, being sent to the 4th Company of the Reserve Battalion of the Petrograd Lifeguard Regiment in Petrograd. With the battalion, he fought with the Southwestern Front between July 1916 and February 1917, then returned to Petrograd before being demobilized on 13 March 1918. In July, he volunteered for the Red Army, serving in the Vitebsky Uyezd military commissariat as a clerk and instructor organizer. From May 1919 Ostashenko served as a Red Army man and political soldier – a Communist mobilized to conduct political work in the army – in the march battalion of the Vitebsk Reserve Regiment. From July he served as an assistant platoon commander in the 84th Rifle Regiment of the 10th Rifle Division, which fought against the Northwestern Army near Petrograd as part of the 15th Army of the Western Front. He entered the Smolensk Commanders' Infantry Courses in November and upon graduation in June 1920 became a platoon commander in the Rzhev-based 2nd Reserve Regiment. This assignment proved to be brief and a month later, Ostashenko became adjutant of the 4th Landing Detachment for armored trains with the Western Front. He fought with the detachment, which provided landing parties for armored trains, in the Polish–Soviet War and was wounded twice.


Answer: a


Question: Question: How many players recorded a Gordie Howe hat trick the year Lucic signed with the Bruins? Passage:In the 2007 off-season, Lucic signed an entry-level contract with the Bruins on August 2. He had been chosen as the Giants' next team captain, but made the Bruins' 2007–08 opening roster out of training camp. He played in his first career NHL game on October 5, 2007, a 4–1 loss to the Dallas Stars, in which he fought opposing forward Brad Winchester. His first goal came a week later on October 12 against Jonathan Bernier, a game winner, in an 8–6 win against the Los Angeles Kings. By also fighting Kings forward Raitis Ivanāns and notching an assist, he recorded a Gordie Howe hat trick (an unofficial statistic constituting a goal, an assist and a fight in one game). Unsure of whether the Bruins would keep him or return him to junior, he stayed in a downtown hotel in Boston to start the season. However, Lucic made enough of an impression during his first set of games with the Bruins, showing grit and consistent willingness to fight (he recorded 13 fighting majors in his rookie season), that they decided to keep him in the lineup. Bruins management informed the Giants prior to Lucic's tenth game, accounting for the NHL's nine-game maximum for junior-eligible players to stay with their NHL club without initiating their contract. He was chosen to participate in the 2008 NHL YoungStars Game and finished his rookie campaign with eight goals and 27 points. Towards the end of the season, he was voted by Bruins fans for the team's Seventh Player Award for exceeding expectations. Matched up against the first-seeded Montreal Canadiens in the opening round, Lucic scored his first Stanley Cup playoff goal in Game 3 on April 13, 2008. He finished his first NHL post-season with two goals as the Bruins were eliminated by the Canadiens in seven games.


Answer: a


Question: Question: What time period did the Antonine dynasty rule? Passage:Commodus, the last emperor of the Antonine dynasty, remembered by contemporaneous chronicles as an unpopular ruler notorious for his extravagance and cruelty, was assassinated in 192. Without sons to be his heir, a struggle for power immediately broke out amongst the governors of the most important provinces. Pertinax was elevated to the purple and recognized by his peers, but following his murder by a restive Praetorian Guard, Septimius Severus decided to make his bid for power and usurped the throne. Although initially a usurper, Severus managed to remain in power for the next 18 years and died a natural death while campaigning in northern Britain. The death of Severus Alexander (the last emperor of the Severan dynasty) in 235 triggered what historians call the crisis of the third century. In this period, from 235 to the accession of Diocletian and the establishment of the Tetrarchy in 286, Rome saw 28 emperors of whom only two had a natural death (from the plague). However, there were also 38 usurpers who raised revolts across the Empire, a clear sign that the security of the frontiers was not the only problem within the Roman world. Usurpation attempts were a constant worry for the emperors in this period; it was a too common method of acceding the throne. Successful usurpers were usually either provincial governors, commanders of a large grouping of Roman legions, or prefects of the Praetorian Guard, which had control of Rome, where the Imperial palace still lay.


Answer:
b