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 23April1943, 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 did the group that Lewis made his opera debut with first established? Passage:William Lewis was educated at the University of Colorado, Texas Christian University and New York University. He began his career as a writer and an athlete before deciding to pursue a career in opera. He began his voice training under Karl Kritz and Arthur Faguy Cote in Fort Worth, followed by studies with Susan Seton and Hulda and Luigi Rossini in New York. He made his professional opera debut in 1953 with Fort Worth Opera as Rinuccio in Puccini's Gianni Schicchi. Two years later he won the Metropolitan Opera's Audition of the Air competition (precursor to the National Council Auditions). Lewis made his debut at the Metropolitan Opera as Narraboth in Salome on March 1, 1958 and subsequently sang in 234 performances in his 35 years with the company. In 1975 he made his debut at San Francisco Opera as Steuermann and Erik in The Flying Dutchman and has sung in sixteen different productions with the company in subsequent seasons. In 1981 he made his debut at the Salzburg Festival in the title role of Offenbach's The Tales of Hoffmann, returning there for the following four years in such roles as Arbace in Idomeneo and the First Geharnischter in The Magic Flute. In 1990 he made his debut at the Teatro Lirico in the world premiere of Azio Corghi's Blimunda.

Example Output: b

Example Input: Question: How long is the road that runs through Namakgale's neighboring townships? Passage:Namakgale is a large township lying 12km outside Phalaborwa in Mopani District in the Limpopo province of South Africa. Its nearest neighbouring townships are Lulekani, Makhushane, Maseke and Mashishimale on the R71 road to Gravelotte. It is next to the Kruger National Park on the north eastern part of the Limpopo province previously Northern Transvaal. The township enjoys the annual Marula festival during the months of February and March, when the ripe Marula fruit harvest is at its peak, and the Marula traditional beer is brewed. This is home to the Amarula liqueur is harvested, and the pulp is shipped to Cape Town for further processing. The citizens of Namakgale will enjoy the Mopani worms first harvest during March and April, and the second harvest in December. the Mopani tree and the Morula tree are very important to the residents of the Namakgale as they bring important community subsistence farming.

Example Output:
b