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.

Input: Consider Input: Question: When was the institute that awarded Ellis the Maxwell Medal and the Paul Dirac Prize founded? Passage:After completing his secondary education at Highgate School, he attended King's College, Cambridge, earning his PhD in theoretical (high-energy) particle physics in 1971. After brief post-doc positions at SLAC and Caltech, he went to CERN and has held an indefinite contract there since 1978. He was awarded the Maxwell Medal and the Paul Dirac Prize by the Institute of Physics in 1982 and 2005 respectively, and is an Elected Fellow of the Royal Society of London since 1985 and of the Institute of Physics since 1991. He was awarded an Honorary Doctorate from the University of Southampton, and twice won the First Award in the Gravity Research Foundation essay competition (in 1999 and 2005). He is also Honorary Doctor at Uppsala University.


Output: b


Input: Consider Input: Question: Did Ivan's brother die in battle? Passage:A member of the Aspietes family, of noble Armenian origin, Constantine was probably a close relative of his contemporary Michael Aspietes, a distinguished general killed in 1176. Like his relative, Constantine too had earned distinction during Manuel I Komnenos' campaign against the Hungarians in 1167. The historian John Kinnamos records that he held the rank of sebastos. He is next recorded as being active in 1190/1, during the Byzantine efforts to suppress the Bulgarian–Vlach rebellion of the brothers Peter and Ivan Asen. The historian Niketas Choniates records that, in an effort to sustain the troops and bolster their morale, Aspietes decided to distribute to them their delayed annual salaries. This act, however, enraged Emperor Isaac II Angelos, who saw in it almost an attempt to bribe the army to support Aspietes in overthrowing him. The emperor had Aspietes arrested and blinded, after which nothing further is known of him. He possibly died in the early years of the 13th century.


Output: b


Input: Consider Input: Question: What country was Mirche Atsev born? Passage:Mirche Atsev was born in 1859 in the village of Oreovec in the Prilep district, then part of the Ottoman Empire. He was named after his father, Mirche Atsev, who was a well-known voyvoda. He schooled himself in Prilep and then he worked as a shepherd. After Turks murdered his father, he joined the Hayduk's band of Kone Pavlov in 1885. Houever, in the next year, he was arrested and imprisoned in Solun. After having escaped from the prison, Atsev moved to Bulgaria. During his stay in Sofia, he was accused of involvement in the murder of Stefan Stambolov, as a result of which he was imprisoned for three years in the Black Mosque, (now Sveti Sedmochislenitsi Church). In Sofia, together with his brothers Petar and Georgi, he joined the revolutionary activity of the IMARO against the Turkish authorities. In 1899, Atsev entered with a revolutionary band into Ottomn Macedonia, in the region of Nevrokop. Later, he was a voyvoda in the region in Prilep. In 1901, on the way to the village of Ulanci, in the Tikveš region, his band was chased and crushed by a Turkish military detachment. Mirche Atsev died in this battle.



Output: a