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.

Ex Input:
Question: In what years did the Calgary Dinos win the Vanier Cup? Passage:During the following off-season in 2015, UBC Athletics would draw the Dinos head coach, Blake Nill away from the Calgary Dinos in what was the most high profile coaching change that year. Nill's impact was immediate as he was able to recruit quarterback Michael O'Connor, who was the ranked the sixth best quarterback by ESPN among the 2014 recruiting class. The Thunderbirds achieved a turnaround in Nill's debut season at the UBC helm to finish the 2015 regular season with a 62 record, placing second in the CWUAA standings. During the ensuing post-season drive of three straight single-elimination playoff games on the road, UBC upset the heavily favoured Calgary Dinos in the Hardy Cup game at Calgary; then defeated the St. Francis Xavier X-Men to earn its historical first Uteck Bowl victory at Antigonish, to advance to the national title game. In the 51st Vanier Cup championship, the Thunderbirds narrowly defeated the defending CIS champion Montreal Carabins, by scoring the game's last possession field goal to end the fourth quarter. The victory was UBC's fourth Vanier Cup overall, tying the Calgary Dinos for the all-time record among CWUAA member universities.

Ex Output:
a

Ex Input:
Question: In what country did Boreal make his first appearance outside Germany? Passage:On his first race of 2002, Boreal made his first appearance outside Germany when he contested the Dubai Sheema Classic at Nad Al Sheba Racecourse on 23 March. Ridden by Kieren Fallon, he stayed on strongly in the straight and finished third behind Nayef and the New Zealand gelding Hades with the other beaten horses including Marienbard and Tobougg. On 7 June, the colt was sent to England and attempted to become the first German-trained horse to win the Coronation Cup over one and a half miles at Epsom Racecourse. Racing on soft ground, he started 4/1 third favourite behind Kutub (Preis von Europa, Gran Premio del Jockey Club, Singapore Gold Cup), and Storming Home. The other three runners were Marienbard, Zindabad (Yorkshire Cup), and Pawn Broker (Arc Trial). Fallon positioned the German challenger just behind the leader Zindabad before taking the lead entering the straight and tracking across to the stands-side (outside) rail. Boreal went clear of his rivals in the last quarter mile and won by three and a half lengths from Storming Home with Zindabad six lengths back in third. After training the first German winner at Group One level in Britain since Star Appeal took the 1975 Eclipse Stakes, Schiergen said, "He travels smoothly on good ground but is more at home on soft. It's a special thrill to have a winner in Britain, and extra-special when it's a Group 1 at the home of the Derby."

Ex Output:
b

Ex Input:
Question: How many people died at the Battle of Roundway Down? Passage:The Cornish Royalist army then received orders to rendezvous with Prince Maurice's men, whom they met at Chard in Somerset in June. This combined force now took Taunton, Bridgwater, Dunster Castle and Wells. Their first contact with the Parliamentarian commander William Waller was a cavalry skirmish at Chewton Mendip. Waller was driven out of Monkton Farleigh on 3 July 1643 and on 5 July, two days later, the Royalists won a pyrrhic victory at the Battle of Lansdowne. Sir Bevill Grenvile fell at the battle. The foot were now besieged in Devizes but witnessed the destruction of Waller's forces at Roundway Down. The Western Royalists took Bath, and after joining Prince Rupert on 26 July 1643 they stormed Bristol. The Battle lasted over thirteen hours and at the end the Royalist had taken the City, but lost both Sir Nicholas Slanning and Sir John Trevanion. The Cornish returned to Devon, and unfer Prince Maurice, they took Exeter on 4 September and Dartmonth on 6 October, and arrived back near Plymouth for the winter. Godolphin was knighted at Oxford on 6 May 1644. Later in the year the Royalist captured and disbanded the parliamentary army of the Earl of Essex on 22 August 1644. In 1645 Godolphin's Regiment returned to Exeter to become one of the garrison units and was still there at the fall of the city on 9 April 1646. Godolphin was one of the signatories to the surrender.

Ex Output:
b