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: Did Sargis Tmogveli survive the capture of the city of Kars? Passage:Shalva was one of the most notable military commanders during a series of expansionist wars waged by the Kingdom of Georgia under Queen Tamar (r. 11841213). He consecutively held top posts of mechurchletukhutsesi (Lord High Treasurer) and mandaturtukhutsesi (Lord High Mandator) at Tamar's court. Together with his brother Ivane, Shalva was in command of vanguard traditionally composed of the Meschian troops from south Georgia. In the battle of Shamkor against the Ildenizid atabeg of Azerbaijan in 1195, he captured a war banner sent by the Caliph to the Muslim army which was then donated to the revered icon of Our Lady of Khakhuli. In 1206/1207, Shalva, together with Sargis Tmogveli, took hold of the city of Kars from the Seljuqs and was appointed as the governor of the Kars county.

Example Output: b

Example Input: Question: Who was the first commander of the military unit Cyril Isaac served in during world war 1? Passage:He was born in Brunswick to Congregationalist minister Abraham Isaac and Mary Judd. He attended state schools and became a schoolteacher, working for the Victorian Education Department from 1900. On 3 September 1907 he married Elizabeth Brown, with whom he had four children. In 1913 he was appointed a supervisor of school gardening, and pioneered several early initiatives in this area. During World War I he served with the 58th Battalion, and after the war he spent time in England studying horticulture. He ran a nursery at Noble Park from 1922. From 1928 to 1931 and 1937 to 1940 he was a member of Dandenong Shire Council, and he was also chairman of Associated Nurseries Pty Ltd from 1932 to 1965 and president of the Nurserymen and Seedsmen's Association from 1936 to 1937. In 1940 he was elected to the Victorian Legislative Council as a United Australia Party member for South Eastern Province. While in the Council he ran a Save the Forests campaign, which evolved into the National Resources Conservation League in which Isaac played a leading role. He lost Liberal and Country Party endorsement in 1952 and was defeated running as an independent candidate. In 1956 he was appointed an Officer of the Order of the British Empire. Isaac died at Footscray in 1965.

Example Output: b

Example Input: Question: Which opponent that Hayashi faced in a tag team match during Wrestle-1's inaugural event is the oldest? Passage:On July 10, 2013, Hayashi was announced as part of Keiji Mutoh's new Wrestle-1 promotion. During the promotion's inaugural event on September 8, Hayashi teamed with Shuji Kondo in a tag team match, where they were defeated by the Big Japan Pro Wrestling team of Daisuke Sekimoto and Yuji Okabayashi. As part of a working relationship between Wrestle-1 and American promotion Total Nonstop Action Wrestling (TNA), Hayashi and Kondo earned a shot at the TNA World Tag Team Championship by defeating Desperado (Kazma Sakamoto and Masayuki Kono) on February 15, 2014. On March 2 at , Hayashi and Kondo unsuccessfully challenged The Wolves (Davey Richards and Eddie Edwards) for the TNA World Tag Team Championship in a three-way match, which also included The BroMans (Jessie Godderz and Robbie E), who went on to win the match and become the new champions. On September 22, Hayashi entered the Wrestle-1 Championship tournament, but was defeated in his first round match by Kondo. On October 12, Hayashi worked TNA's Bound for Glory event in Tokyo, unsuccessfully challenging Samoa Joe for the TNA X Division Championship in a three-way match, which also included Low Ki. In November, Hayashi and Kondo took part in the First Tag League Greatest tournament, set to determine the inaugural Wrestle-1 Tag Team Champions, where they finished second in their block with a record of three wins and one loss, advancing to the semifinals. On November 30, Hayashi and Kondo first defeated Kai and Ryota Hama in the semifinals and then Akira and Manabu Soya in the finals to win the tournament and become the inaugural Wrestle-1 Tag Team Champions. After seven successful title defenses, they lost the title to Soya and Jun Kasai on July 12, 2015. On October 9, Kondo broke off his partnership with Hayashi. On January 31, 2016, Hayashi, Minoru Tanaka and Tajiri won the vacant UWA World Trios Championship. They lost the title to Andy Wu, Daiki Inaba and Seiki Yoshioka in their fifth defense on July 29. On September 18, Hayashi and Kotaro Suzuki won the vacant Wrestle-1 Tag Team Championship. They lost the title to Koji Doi and Kumagoro on March 20, 2017.

Example Output:
a