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.

Q: Question: How many soldiers fought under the combined Cossack-Tatar side under chief Asand Demko? Passage:He began his studies in Poland and continued his education at the University of Leuven. His considerable wealth enabled him to establish his own private army, which suppressed Cossack riots and Tatar raids in Ukraine. In 1635 he became the first voivode of the Czernihów Voivodship. In 1646 he was appointed Field Crown Hetman. During the Khmelnytsky Uprising, he was captured by the Tatars after the Battle of Korsun in 1648. He was a prisoner-of-war until 1650 when he was ransomed. On 12 May 1651 he commanded victorious Polish army in the Battle of Kopyczyńce between Poles and combined Cossack-Tatar forces under chief Asand Demko. In 1651, during the subsequent hostilities between the Commonwealth and Cossack-Tatar alliance, he was the nominal commander of the Polish army right wing at the great victorious Battle of Beresteczko (de facto commanded Jeremi Wiśniowiecki). Upon death of Grand Crown Hetman Mikołaj Potocki, who was his political and personal adversary, hetman Kalinowski commanded the choicest elements of the Commonwealth army and he had at the camp at Batoh about 10–12,000 soldiers and 10–15,000 servants and camp followers. This army was surprised by the combined Cossack-Tatar army, consequently defeated and then capture of Polish soldiers and servants resulted in a wholesale slaughter of the best elements of Commonwealth army and their retinues, the event known as Battle of Batoh. Hetman was killed on 2 June 1652, during the last day of the battle, when trying to escape from the Cossack-Tatars-filled burning Polish camp, in woods some 3 kilometers from the Polish camp. Hetman's severed head was carried around the Cossack-Tatar camps, allegedly by the Nuredin-Sultan himself.


A: a
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Q: Question: What year was the School of American Ballet founded? Passage:Waring's training began in 1939 in San Francisco and Oakland at the age of 17. He was exposed to numerous kinds of dancing, including ballet at the San Francisco Ballet School with Harold Christensen and his brother, the Graham technique with Gertrude Schurr, and the interpretive dance of Raoul Pausé. Later, after serving in the Army in World War II, he studied in New York City at the School of American Ballet, and with Anna Halprin, Louis Horst, Antony Tudor, and Anatole Vilzak, and also took some classes with Merce Cunningham. Waring was very attracted to ballet and intrigued by its complex history and sensibility, and dance historian David Vaughan suggests that Waring's extensive knowledge of dance history played an important role in his work; Waring's dances became more balletic over time.


A: b
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Q: Question: Were both Zwart partners born in the same country? Passage:Mike Phillips attempted to enter an A410 at the 24 Hours of Daytona in 2001, but did not attend the race. The Sports Racing World Cup had been renamed to the FIA Sportscar Championship, but the A410, now driven by Lupberger and Ben Collins, started the season as it had finished 2000; with a retirement, although it did last for 74 laps before blowing its engine with half an hour to go at Barcelona. Next up was the Donington Park of the European Le Mans Series, which saw both A410s entered; although the A410 of Patrick Lemarié did not make the start of the race, due to engine problems, Lupberger and Collins were classified 23rd, having retired after 54 minutes – and 35 laps – due to another gearbox problem. The 1000 km of Monza, part of the FIA Sportscar Championship, saw the first success for the A410; Collins and Lupberger brought their car home in second, 7 seconds behind the Ferrari 333SP-Judd of Giovanni Lavaggi and Christian Vann. The upturn in form continued at Spa-Francorchamps, where Collins and Lupberger brought the A410 home in fourth, a lap down, but having set the second fastest lap of the race. Lupberger and Collins were partnered by Harri Toivonen for the 24 Hours of Le Mans in the A410-001 chassis, whilst Zwart partnered Xavier Pompidou and Scott Maxwell in the other; neither finished, as the A410-001 retired due to fuel pump issue after 11 hours and 134 laps, and the other car crashed out after 15 hours and 66 laps. Having returned to the FIA Sportscar Championship, Collins and Lupberger took a pair of fourth-place finishes, at Brno and Magny-Cours. The team went even better at Donington Park; Collins and Lupberger won by almost a minute, for the car's maiden victory. The penultimate round of the season, held at Mondello Park, was a little less successful, as the team finished ninth overall, and sixth in the SR1 class. In the final race of the season, held at the Nürburgring, the car was disqualified from third place due to issues with its dimensions. Team Ascari finished the season in fourth, with 71 points; nine behind Racing for Holland in third, but 30 ahead of R&M in fifth. The team's one European Le Mans Series race resulted in them being classified in eighth, with 11 points.


A:
a
****