In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Ex Input:
Question: Who did Michigan defeat to win the championship in the 1997 season? Passage:Fred Jackson (born June 9, 1950) is an American football coach and former player. He was previously the running backs coach at the University of Michigan. In 2014, he was the longest tenured member of the Michigan Wolverines football coaching staff, having been with the program since 1992. Jackson served on the staffs of Gary Moeller, Lloyd Carr, Rich Rodriguez, and Brady Hoke. In addition to coaching running backs, Jackson served as Michigan's offensive coordinator (19951996), assistant head coach (19972002), and associate head coach (20032007). He was a finalist for the Broyles Award, given annually to the nation's top college football assistant coach, in 2000. After Michigan head coach Lloyd Carr retired following the 2007 season, Jackson was the only member of the coaching staff retained by Carr's successor, Rich Rodriguez. When Rodriguez was fired after the 2010 season, Jackson was the only member of Rodriguez's staff retained by his successor, Brady Hoke. Hoke and Jackson served as assistants together under Carr and Gary Moeller for a total of eight years including the 1997 national championship season.

Ex Output:
b

Ex Input:
Question: Which actor had been in more films the year The Sacketts was released, Glenn Ford or Ben Johnson? Passage:Osterhage began his acting career in a television adaptation of in 1978 and starred in the 1979 TV movie The Legend of the Golden Gun. He is probably most recognizable to western fans in his role as Tyrel Sackett in the 1979 western The Sacketts, followed by the 1982 The Shadow Riders, both being film adaptations of novels by western novelist Louis L'Amour. The Shadow Riders is not a part of the "Sackett" book series, and the actors play totally different roles. In both films he starred opposite Tom Selleck and Sam Elliott. In the first film he also starred alongside western legends Ben Johnson and Glenn Ford, with Johnson also starring in the second. Osterhage has appeared in twenty-seven films, made-for-television movies, and television series appearances in TV series including The Dukes of Hazzard, Knight Rider, T. J. Hooker, Scarecrow and Mrs. King, Murder, She Wrote, Moonlighting, Simon & Simon, Matlock, as well as the computer game . His latest appearance is in the 2008 film Taken by Force. He also played Marshal James Anderson in the computer game Outlaws, released in 1997.

Ex Output:
a

Ex Input:
Question: How many years were there between Constantinople's establishment and Basil I's accession to the throne? Passage:Following the fall of the Exarchate of Ravenna in 751, Byzantium had been absent from the affairs of southern Italy for almost a century, but the accession of Basil I (reigned 867886) to the throne of Constantinople changed this: from 868 on, the imperial fleet and Byzantine diplomats were employed in an effort to secure the Adriatic Sea from Saracen raids, re-establish Byzantine dominance over Dalmatia, and extend Byzantine control once more over parts of Italy. As a result of these efforts, Otranto was taken from the Saracens in 873, and Bari, captured from Arabs by the Holy Roman Emperor Louis II in 871, passed under Byzantine control in 876. The expeditions of the capable general Nikephoros Phokas the Elder in the mid-880s further extended Byzantine control over most of Apulia and Calabria. These victories were followed up by his successors and laid the foundation of a resurgence of Byzantine power in southern Italy, culminating in the establishment of the theme of Longobardia in c. 892. The regions of Apulia, Calabria and Basilicata would remain firmly under Byzantine control until the 11th century. In c. 965, a new theme, that of Lucania, was established, and the strategos (military governor) of Bari was raised to the title of katepano of Italy, usually with the rank of patrikios. The title of katepano meant "the uppermost" in Greek. This elevation was deemed militarily necessary after the final loss of nearby Sicily, a previously Byzantine possession, to the Arabs.

Ex Output:
a