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: Why did the Nok culture die off about 200 AD on the Jos Plateau? Passage:The Nok culture thrived from approximately 1,500 BC to about 200 AD on the Jos Plateau in north and central Nigeria and produced life-sized terracotta figures that include human heads, human figures, and animals. Iron smelting furnaces at Taruga, a Nok site, date from around 600 BC. The Nok culture is thought to have begun smelting iron by 600-500 BC and possibly some centuries earlier. Kainji Dam excavations revealed iron-working by the 2nd century BC. Evidence of iron smelting has also been excavated at sites in the Nsukka region of southeast Nigeria in what is now Igboland: dating to 2,000 BC at the site of Lejja (Uzomaka 2009) and to 750 BC and at the site of Opi (Holl 2009). The transition from Neolithic times to the Iron Age apparently was achieved indigenously without intermediate bronze production. Others have suggested that the technology moved west from the Nile Valley, although the Iron Age in the Niger River valley and the forest region appears to predate the introduction of metallurgy in the upper savanna by more than 800 years. The earliest iron technology in West Africa has also been found to be contemporary with or predate that of the Nile valley and North Africa, and some archaeologists believe that iron metallurgy was likely developed independently in sub-Saharan West Africa.

Example Output: b

Example Input: Question: When was Tuck's favorite sport invented? Passage:Tuck played high school football in Alabama at Central Coosa County. He played for legendary coach Andrew Slome. Growing up, Tuck's favorite football teams were the San Francisco 49ers and the Dallas Cowboys, but his favorite sport was basketball. Although he began playing football in the seventh grade, Justin only began to take it seriously in his freshman year of high school where he originally started out as a quarterback before changing positions to tight end and defensive end. His accolades include earning Alabama Class 4A Player of the Year as a senior in 2000, as well as lettering in football at both linebacker and tight end. For his career at Central-Coosa, Tuck recorded 492 tackles with 37 sacks, 26 forced fumbles, and 17 fumble recoveries. As a tight end, Tuck had 115 catches for 2,106 yards and 17 touchdowns. Subsequently, Tuck also won two state championships as a member of the high school basketball team.

Example Output:
b