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.

Question: What city did Stevens complete a Ph.D. in? Passage:In 1980, Stevens joined the Army under their split option training program and conducted basic training at Fort Dix, New Jersey and advanced individual training at Fort Sam Houston, Texas. While engaged in his military service, Stevens entered the University of Southern Maine in the Computer Science program in 1981. However, an enthusiastic professor (John Ricci) converted him to the study of Chemistry. He spent two summers working as an intern at the Brookhaven National Laboratory in Long Island with Professor Ricci, and Drs. Thomas Koetzle and Dick McMullan, where he first learned how to determine the molecular structure of compounds by X-ray and neutron diffraction. While there he also met a University of Southern California research team led by Dr. Robert Bau; after he obtained a Bachelor of Science degree in Chemistry at USM, he entered the University of Southern California in pursuit of a Doctor of Philosophy degree in Chemistry working with Professor Robert Bau and Nobel Laureate Professor, George Olah. He completed his Ph.D. in 26 months, graduating in 1988.

b

Question: How old was the governor when Rosas was overthrown? Passage:The central figure in the overthrow of Rosas, Entre Ríos Governor Justo José de Urquiza, was granted the power of a head of state by the Palermo Protocols of April 6, 1852. This provoked resistance in Buenos Aires, however, which then refused to ratify the San Nicolás Agreement of May 31. The prospect of having the Argentine Congress headquartered in Santa Fe proved especially objectionable, and Urquiza's June 12 appointment of former President Vicente López y Planes failed to turn public opinion in Buenos Aires. Colonel Bartolomé Mitre rallied the Assembly against the San Nicolás Accords. The most contentious issue remained the Buenos Aires Customs, which remained under the control of the city government and was the chief source of public revenue. Nations with which the Confederation maintained foreign relations, moreover, kept all embassies in Buenos Aires (rather than in the capital, Paraná).

b

Question: Who won the Chennai Open in 2009? Passage:His 2009 season Schüttler started off at the Chennai Open, beating Prakash Amritraj 6–2, 4–6, 6–1. In the second round, he beat Simon Greul 6–4, 6–2, and in the quarterfinals Björn Phau, 6–2, 7–5. Unfortunately Schuettler had to withdraw from his semifinal match against Somdev Devvarman because of a wrist injury. He also withdrew from the tournament in Sydney. At the Australian Open, he was seeded 30th but lost in the first round to Israeli Dudi Sela 1–6, 6–2, 6–4, 6–4. He also participated in the doubles with Lu Yen-hsun, but they were defeated by Łukasz Kubot and Oliver Marach. In the first round in Rotterdam, he lost to Mario Ančić. He played the Open 13 in Marseille, defeating Laurent Recouderc in the first round 6–1, 6–4.


b