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: Who held O'Leary's position at Georgetown prior to him occupying it? Passage:Arthur Aloysius O'Leary was born on September 27, 1887, in Washington, D.C. His father was a worker on the Baltimore and Ohio Railroad. He was educated at Gonzaga College, and his parish was the adjacent St. Aloysius Church. He entered the Society of Jesus on August 14, 1903, and was sent to St. Andrew-on-Hudson in New York for his scholasticate. He then completed his studies at Woodstock College in Maryland, where he earned a Doctor of Philosophy. He went to Georgetown University in 1912, as a professor of philosophy, holding the position until 1916. At the same time, he was also spiritual director for the university. He was finally ordained a priest in 1919, becoming a member of the first class of priests ordained at Georgetown. He then returned to St. Andrew-on-Hudson, where he taught for several years.

Example Output: a

Example Input: Question: How old was Jovan Rajić when he became a priest in Kovilj? Passage:The present, stone church, was built from 1741 to 1749 by the neimars (builders) Teodor Kosta and Nikola Krapić. It was built in the Morava architectural school style of Serbo-Byzantine architecture and patterned after Manasija and Ravanica. In 1758, Empress Maria Theresa issued a document which set the monastery's estate. By the imperial privilege, the land was strictly divided between the monastery and the nearby settlement of Koviljski Šanac. The establishment of the Šajkaš Battalion in 1763, Serbian settlements surrounding the monastery were repopulated and preserved, which also influenced the prosperity of the monastery. Forerunner of the modern Serbian historiography, Jovan Rajić, became a priest in Kovilj and was appointed the archimandrite of the monastery in 1772, where he died in 1801. During the Hungarian Revolution of 1848, the rebels used the monastery as their base in 1849 which forced the monks to move across the Danube, into the Syrmia region. When they returned after the collapse of the rebellion, the monastery was looted and burned, and many historical treasures have been lost. The new church damaged inside while the old one was almost completely ruined, so it was demolished in 1850. Since 1850, the monks began to collect funds for the restoration. Some of it was secured by the Austrian state, some by the donations of the population and some was help from Russia. Young painter Aksentije Marodić has painted the new iconostas in the 1880s, including the scenes from the life of Christ and replicas of the most famous paintings from that period which Marodić copied from the galleries in Vienna, Munich, Paris, Rome, Venice, and Naples. The walls themselves are not painted. Woodworks and carvings are work of Jovan Kisner, while the gold plating and marble work were done by Ludvig Tauš. The work on the interior turned out to be quite lengthy, as it lasted until 1891/92.

Example Output: b

Example Input: Question: How many students are enrolled at the school where Thomas taught? Passage:Thomas Christian David (December 22, 1925 – January 19, 2006) was an Austrian composer, conductor, choral conductor, and flutist. David was born in Wels, Upper Austria in 1925. He moved to Germany in 1934 at the age of nine with his father, composer Johann Nepomuk David, and mother. Thomas's younger brother, Lukas David, (born 1934) later became a violinist. In 1967, at the age of forty-two, he married (), a Persian Opera singer and they moved to Iran. David was the chief conductor of the orchestra of the National Iranian Television NITV, and also taught at the University of Tehran for seven years until 1973. He had an enormous and invaluable role in the growth and development of the Classical music in Iran. He conducted numerous masterpieces in different venues in Iran from late 1960s to late 1990s.

Example Output:
a