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.

Example Input: Question: How many years did the Great Depression last? Passage:Originally from New Brunswick, Harrison graduated from Nova Scotia Agricultural College in 1922, and, in 1924, from the Ontario Agricultural College with a B.Sc. in agriculture. He earned an MSc in plant pathology from Macdonald Campus of McGill University a year later. A doctoral degree he started at the University of Toronto in 1929 was abandoned due to the Great Depression. He established a herbarium of mycological specimens where he was employed for many years at the Kentville Research Station (now the Atlantic Food and Horticulture Research Centre); most of his collections are now housed at the Canadian National Mycological Herbarium. His early research concerned the fungal infestation of plants, such as that of Colletotrichum lindemuthianum on beans (Phaseolus). Working with John Frederick DeWitt Hockey, they made many contributions to the control and prevention of diseases of horticultural crops. They were among the first to use the sticky slide spore trap to estimate the densities of fungal spores.

Example Output: b

Example Input: Question: Who won the Austrian Grand Prix in which Leclerc finished second? Passage:In China, Leclerc qualified 4th behind Vettel. After overtaking his teammate during the start, he was asked to yield and let Vettel pass. He eventually finished the Chinese Grand Prix in 5th. In Azerbaijan, he was the favourite for pole position until a crash in the second qualifying session ended his contention. He started 8th after penalties for the two Alfa Romeos and finished the race 5th with an extra point for the fastest lap of the race. At the following race in Monaco, he qualified 16th, as part of Ferrari's erroneous strategy that kept him in the garage to save tyres, underestimating track evolution at the end of the qualifying session. He was however promoted to 15th following Antonio Giovinazzi's grid penalty. He overtook Lando Norris and Romain Grosjean but suffered a puncture after a failed attempt to pass the Renault of Nico Hülkenberg. He also suffered severe floor damage to his car, leading to his second retirement at his home race. Leclerc qualified 3rd in Canada, ahead of Daniel Ricciardo in the Renault and behind Lewis Hamilton in the Mercedes. He would finish in the same position, his second podium finish of the season and of his career, behind the controversial 1-2 finish of Hamilton and teammate Sebastian Vettel. He would finish third again in France, having caught up to second-placed Bottas in the closing laps. At the Austrian Grand Prix, he qualified on pole position, the second pole of his Formula 1 career. He subsequently finished second after colliding with Red Bull's Max Verstappen, having led for the major part of the race. The incident was investigated by the stewards after the race, who called it 'a racing incident' and decided against taking action as neither of them was, wholly or predominantly, to blame for the incident.

Example Output: b

Example Input: Question: Who won album of the year at the awards show Sia sang the song Chandelier in a cluttered apartment set?  Passage:Sia performed "Chandelier" on The Ellen DeGeneres Show on 19 May 2014, with Ziegler recreating the choreography in the music video. Sia also performed the song on Late Night with Seth Meyers on 9 June 2014, with Girls star Lena Dunham performing new choreography. In July 2014, Sia performed the song on Jimmy Kimmel Live!, and Ziegler taught host Jimmy Kimmel and his sidekick Guillermo some of the dance moves from the music video. In July 2014, Sia performed the song on the VH1's show "SoundClash", along with her songs "Elastic Heart" and "Big Girls Cry" from the album. Sia sang the song on Dancing with the Stars, with Ziegler dancing a duet with Allison Holker, and at the 2014 We Can Survive Concert at the Hollywood Bowl. In February 2015, Sia sang the song in a cluttered apartment set for the 2015 Grammy Awards telecast. Ziegler danced in a cluttered apartment with actress Kristen Wiig. For all of these performances, Sia sang the track with her back to the camera. She performed the song on Saturday Night Live in January 2015, veiled, with a sad-looking mime who performed the lyrics in American sign language.

Example Output:
b