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: How many churches did Bernardino's teacher paint for? Passage:He was born in Mortara near Pavia. He trained as a pupil of the painter Gaudenzio Ferrari. In Milan, he painted a Last Supper for the church San Nazaro Grande. He painted a Holy family for the church of Sant'Ambrogio, now on display in the Brera Gallery. He painted frescoes on the Life of the Magdalen for the church of San Cristoforo in Vercelli. Three of his works are on display at the Museo Borgogna in Vercelli, including: an Annunciation; a Madonna and Child with Saints Bernardino of Siena and St Francis of Assisi (also labeled Madonna del cane due to dog asleep below Virgin); and a painted standard of Madonna and Child with St Anne and hooded confraternity brothers, painted for the Confraternita di Sant'Anna. Lanini painted a St Catherine for the church San Celso. He frescoed sibyls for the Novara Cathedral. He also painted for a chapel in the Basilica of San Magno, Legnano. Other paintings are in Saronno.

Ex Output:
a

Ex Input:
Question: Which of the people that Sir Simon Fraser fought with during the Scottish Wars of Independence was the oldest? Passage:During the Scottish Wars of Independence, Sir Simon Fraser, known as "the Patriot", fought first with the Red Comyn, and later with Sir William Wallace and Robert the Bruce. Sir Simon is celebrated for having defeated the English at the Battle of Roslin in 1303, with just 8,000 men under his command. At the Battle of Methven in 1306, Sir Simon Fraser led troops along with Bruce, and saved the King's life in three separate instances. Simon was allegedly awarded the 3 Crowns which now appear in the Lovat Arms for these three acts of bravery. He was however captured by the English and executed with great cruelty by Edward I of England in 1306, in the same barbaric fashion as Wallace. At the Battle of Bannockburn in 1314, Sir Simon's cousin, Sir Alexander Fraser of Touchfraser and Cowie, was much more fortunate. He fought at Bannockburn, married Bruce's sister, and became Chamberlain of Scotland. The Frasers of Philorth who are chiefs of the senior Clan Fraser trace their lineage from this Alexander. Alexander's younger brother, another Sir Simon Fraser, was the ancestor of the chiefs of the Clan Fraser of Lovat. This Simon Fraser was killed at the Battle of Halidon Hill in 1333, along with his younger brothers Andrew and James.

Ex Output:
a

Ex Input:
Question: Do the two college teams that Mau pitched for play in the same conference? Passage:Ryan Mau (born November 27, 1978) is an American college baseball coach, currently serving as head coach of the Longwood Lancers baseball team. He has held that position since the beginning of the 2015 season. He pitched one season at Flagler and three at College of Charleston before two seasons in the Miami Marlins organization and one in independent baseball. His coaching career began at Charleston Southern, where he served as pitching coach for one year. He next moved to Marist for two seasons, guiding the Metro Atlantic Athletic Conference pitcher and relief pitcher of the year en route to the MAAC regular season and tournament championship and an NCAA Regional appearance. Next, he moved to VMI where he rose to associate head coach. He helped the Keydets to a school record in wins and their first national rankings, while his pitching staff set school records and ranked among the nation's leaders is several categories. He next moved to Navy, where he served as recruiting coordinator and pitching and catching coach. He helped the Midshipmen to an NCAA Regional appearance. After the 2014 season he was hired at Longwood.

Ex Output:
b