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: Who succeeded Khalid's son as ruler of  the family's stronghold? Passage:Khalid was a member of the Shayban tribe, dominant in the region of Diyar Bakr in the northern Jazira, and third son of Yazid ibn Mazyad al-Shaybani, who served twice as Arab governor (ostikan) of Arminiya (a large province encompassing the whole of Transcaucasia). Khalid served in the same office no less than four times: in 813/814, 828–832, briefly in 841 and again under Caliph al-Wathiq (r. 842–845). In his first tenure, he showed himself conciliatory towards the native Christian population and the nakharar princes, but his second tenure was marked by the brutal suppression of several revolts by local Arab magnates, as well as the harsh treatment of the Christian population. As a result, when his re-appointment to the office was announced in 841, a rebellion broke out, forcing the Abbasid government to recall him immediately. Nevertheless, al-Wathiq assigned Arminiya to Khalid. The latter arrived in the province at the head of an army, and crushed any opposition. He died soon after at Dvin, where he was buried. He was succeeded by his son, Muhammad. His younger son Haytham ibn Khalid ruled in the family's stronghold of Shirvan, and was the first to claim the title of Shirvanshah.


Ex Output:
b


Ex Input:
Question: What theatre was built first, the one Gregario appeared at in 1988, or the one she appeared at in 1993? Passage:In 1977, Gregorio returned to Broadway after an eight-year hiatus in the original production of Michael Cristofer's The Shadow Box as Agnes; she garnered nominations for the Tony Award for Best Performance by a Featured Actress in a Play and the Drama Desk Award for Outstanding Featured Actress in a Play. Since then her theatre appearances have been sporadic. She appeared as Laurie in the Off-Broadway production of David Blomquist's Weekends Like Other People, at the Marymount Manhattan Theatre in 1982. The following year she returned to Broadway as Beatrice in the original production of A View from the Bridge at the Ambassador Theatre, and again in 1988 as Helga in the original production of M. Butterfly at the Eugene O'Neill Theatre. In 1993 she appeared as Karen Frick in the Manhattan Theatre Club's production of Arthur Miller's The Last Yankee and in 2000 she portrayed the roles of Lena and Sandra in Beth Henley's Family Week at the Century Center for the Performing Arts.


Ex Output:
b


Ex Input:
Question: Which team involved in the 2018 Nigeria Women Premier League opening game had been a team longer? Passage:The 2018 Nigeria Women Premier League began on April 7 in a game featuring defending champions Nasarawa Amazons from Nasarawa State and FC Robo of Lagos State. The date was decided following a congress held in Ikeja on March 3. Prior to the game, a maiden super cup named the NWFL Champions Shield match was played between Aiteo Cup winners, Rivers Angels and Nasarawa Amazons to officially open the new season. At the end of the 2017 season, Sure Babes of Ilorin, Jokodolu Babes of Ogbomosho and Taraba Queens of Taraba State were promoted to compete in the elite division pending registration procedures, while Saadatu Amazons of Minna and Heartland Queens of Owerri were relegated to the pro league. In May 2018, the league went on a mid-season break due to the 2018 FIFA World Cup, this was further elongated after an emerging NFF leadership crisis. In August 2018, it was announced that the remaining games of the league will commence September 12.


Ex Output:

a