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.

Example 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.

Example Output: a

Example Input: Question: What is the mascot of the team that Mike Sanford Jr. left to join the Irish? Passage:The off-season brought a few changes to the coaching staff, as Notre Dame lost three assistant coaches to other opportunities: Kerry Cooks left the coaching staff to take the same position at the University of Oklahoma. Matt LaFleur departed to take the same position for the Atlanta Falcons of the NFL, and Tony Alford left the university to take the same position at Ohio State University. Also, Outside Linebackers coach Bob Elliott moved into an off-the-field coaching role within the program. To replace their losses, Notre Dame welcomed the addition of four new assistant coaches. Mike Sanford Jr. former Offensive Coordinator/Quarterbacks coach at Boise State accepted the same position on the coaching staff. Todd Lyght, a former All-American at Notre Dame and Cornerbacks coach at Vanderbilt, accepted the same position on the coaching staff. Keith Gilmore, previously the Defensive line coach at North Carolina, accepted the same position on the coaching staff. Autry Denson, Notre Dame's all-time leading rusher and Running Backs coach at the University of South Florida, accepted the same position on the coaching staff.

Example Output: a

Example Input: Question: Which country did Shah Jalal live in the year the Conquest of Taraf took place? Passage:After the Conquest of Taraf in 1304, Shah Arifin Rafiuddin, a disciple of Shah Jalal, migrated and settled in present-day Tahirpur where he preached Islam to the local people. His khanqah also remains here in Sarping/Laurergarh but the part containing his mazar is on the other side of the border in Meghalaya on top of Laur Hill. Tahirpur contained the village of Nabagram, now in Badaghat Union, which served as the capital of the Laur Kingdom. In the 18th century, Tahirpur became a part of Brajendra Kishore Roy Chowdhury's zamindari based in Gouripur House in Mymensingh. Tahirpur was then a predominantly Hindu-populated area. During this period, the local council resolved a false accusation against a Bengali Muslim by the name of Tahir Ali. Following this, Tahir Ali settled in this area and named his village Tahirpur. Tahirpur was founded as a thana in 1924 named after the village of Tahirpur. During the Bangladesh Liberation War of 1971, refugee camps were set up in the nearby Khasi and Jaintia Hills. During the Bhashan Pani movement from 1997 to 1998, ten peasants were murdered with many also being arrested or kept confined.

Example Output:
b