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: How deep were their heavy infantry formations normally? Passage:Having recovered from their losses at Trebia (218 BC) and Lake Trasimene (217 BC), the Romans decided to engage Hannibal at Cannae, with approximately 86,000 Roman and allied troops. They massed their heavy infantry in a deeper formation than usual, while Hannibal used the double envelopment tactic and surrounded his enemy, trapping the majority of the Roman army, who were then slaughtered. The loss of life on the Roman side was one of the most lethal single day's fighting in history; Adrian Goldsworthy equates the death toll at Cannae to "the massed slaughter of the British Army on the first day of the Somme offensive in 1916." Only about 15,000 Romans, most of whom were from the garrisons of the camps and had not taken part in the battle, escaped death. Following the defeat, Capua and several other Italian city-states defected from the Roman Republic to Carthage.


Output: b


Input: Consider Input: Question: Which unit that were combined to form the Royal Irish Regiment was established first? Passage:He was Commanding Officer of 1Bn Royal Irish Rangers from February 1989 to August 1991. He attended the Higher Command and Staff Course, graduating in April 1991, and was promoted to colonel on 30 June 1991. From August 1991 to January 1992, he was based in Northern Ireland, overseeing the amalgamation of the Ulster Defence Regiment and the Royal Irish Rangers into the Royal Irish Regiment. He was promoted to brigadier on 31 December 1991, with seniority from 30 June 1991. From January 1992 to November 1993, he was commanding officer of the 48 Gurkha Brigade in Hong Kong. He was posted to the Ministry of Defence from November 1993 until January 1997 as Director of Public Relations (Army).


Output: a


Input: Consider Input: Question: How many people had died from the disease Bundy had as a two-year old when he was infected with it? Passage:Bundy was born in Malmö, Sweden, the son of Håkan Bundy and his wife Märta (née Thorell). When he was two-year-old Bundy suffered from polio - infantile paralysis. Then there was still no vaccine. He was lucky, a nerve in one calf was infected, while a two-year girl in his circle of friends, who also had the disease, died. He received a Candidate of Law degree from Lund University in 1946 and served at the Ministry for Foreign Affairs in 1948 and 1953. Bundy served in Prague in 1949, Paris in 1950, Canberra in 1957, Cairo in 1958 and Tehran in 1960. He was first secretary at the Foreign Ministry in 1960, director in 1963 and the acting chargé d'affaires in Nicosia in 1964. Bundy was commercial counsellor at the embassy in Washington, D.C. in 1965, deputy director at the Foreign Ministry in 1971 and embassy counsellor in Helsinki in 1972. He was ambassador in Kuwait City, Doha, Manama and Abu Dhabi from 1977 to 1980 and in Tehran from 1980 to 1985. Bundy served in the Foreign Ministry in Stockholm from 1985 to 1986.



Output: b