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: When did the first commanding officer of the 6th Airlanding Brigade join the military? Passage:On 23 April 1943, the War Office gave permission to raise a second airborne division, the 6th Airborne. The division comprised the 3rd and 5th Parachute Brigades and the 6th Airlanding Brigade, giving it two parachute and one airlanding brigades, which became the standard British complement for an airborne division. In May 1943 Brigadier Hugh Kindersley was appointed as the airlanding brigade's first Commanding Officer (CO). Under his command he had two experienced battalions transferred from the 1st Airlanding Brigade: the 2nd Battalion, Oxfordshire and Buckinghamshire Light Infantry (2nd OBLI) and the 1st Battalion, Royal Ulster Rifles (1st RUR). They were joined by a unit newly transferred to the airborne forces, the 12th Battalion, Devonshire Regiment (12th Devons), a hostilities-only unit formed during the war, as the brigade's third infantry battalion. Other units assigned around the same time were the 53rd (Worcestershire Yeomanry) Airlanding Light Regiment, Royal Artillery, the 249th (Airborne) Field Company, Royal Engineers and the 195th (Airlanding) Field Ambulance, Royal Army Medical Corps.

Example Output: b

Example 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.

Example Output: b

Example Input: Question: How many members were in the band that Elf opened for? Passage:Though his parents were from Cortland, New York, Dio was born in Portsmouth, New Hampshire, where his family resided for his father's service in the U.S. Army during World War II; they soon returned to Cortland. Dio's music career began there in 1957 as part of the Vegas Kings (later Ronnie and the Rumblers). In 1967, he formed the rock band Elf, which became a regular opening act for Deep Purple. In 1975, Deep Purple guitarist Ritchie Blackmore founded the band Rainbow and hired Dio to be his lead singer where the band released three studio albums. Dio quickly emerged as one of heavy rock's pre-eminent vocalists. In 1979, Dio joined Black Sabbath as lead singer. He appeared on three studio albums with the band which met with success: Heaven & Hell (1980) and Mob Rules (1981) and Dehumanizer (1992). In 1982, he left the band to pursue a solo career with two albums certified platinum by RIAA. In 2006, he founded the band Heaven & Hell with ex-bandmate Tony Iommi. Dio was diagnosed with stomach cancer in 2009, from which he died the following year.

Example Output:
b