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.

Ex Input:
Question: Was the Social Democratic Party around when Knochel was conscripted into the Imperial Army? Passage:Wilhelm Knochel was born into a Social Democratic working class family in Offenbach, a short distance upriver from Frankfurt. He qualified and worked as a factory machine operator ("Dreher"). In 1917 he was conscripted into the Imperial Army, shortly after which he was badly wounded. There are also references to his having worked as a mines maintenance engineer ("Grubenschlosser"). In 1919, with Germany affected by acute economic hardship and, especially in the cities, a succession of revolutionary uprisings, Knochel joined the Social Democratic Party ("Sozialdemokratische Partei Deutschlands" / SPD). By 1920 he had relocated in search of work to the industrially vital and internationally critical Ruhr region. Sources differ over whether it was in 1920 or 1923 that he switched to the recently created Communist Party. Between 1924 and 1930 he was a member of the party leadership team for the Dortmund region ("...des Unterbezirk Dortmund"). In 1930, following the death of his first wife, he returned to Offenbach, where it was arranged that his daughter should be brought up by relatives. Knochel was now employed as a party official.

Ex Output:
b

Ex Input:
Question: How big is the National Park that the Yellowstone River flows northward through? Passage:The river rises in northwestern Wyoming in the Absaroka Range, on the Continental Divide in southwestern Park County. The river starts where the North Fork and the South Fork of the Yellowstone River converge. The North Fork, the larger of the two forks, flows from Younts Peak. The South Fork flows from the southern slopes of Thorofare Mountain. The Yellowstone River flows northward through Yellowstone National Park, feeding and draining Yellowstone Lake, then dropping over the Upper and Lower Yellowstone Falls at the head of the Grand Canyon of the Yellowstone within the confines of the park. After passing through the Black Canyon of the Yellowstone downstream of the Grand Canyon, the river flows northward into Montana between the northern Absaroka Range and the Gallatin Range in Paradise Valley. The river emerges from the mountains near the town of Livingston, where it turns eastward and northeastward, flowing across the northern Great Plains past the city of Billings.

Ex Output:
b

Ex Input:
Question: How many seasons did the show in which Osvaldo played Lazarito air? Passage:Benavides began his career in television from an early age, on the telenovela El abuelo y yo, along to Gael Garcia Bernal, and Ludwika Paleta. Two years later, in 1995 he played Nandito, the lost son of Maria la del Barrio, thanks to his character, he won in the edition 14th TVyNovelas Awards for Best Young Lead Actor. In that same year he also participated in the telenovela El premio mayor as Chicles. In 1996 he played Lazarito in the telenovela Te sigo amando, along to Claudia Ramirez, and Luis Jose Santander, and won again at the 16th TVyNovelas Awards as Best Young Lead Actor. In 1998, he participated in the telenovela Preciosa, and later in the film La primera noche, with the latter he made his film debut, and for which he stood out. In the year 2000, he participated in telenovela Locura de amor, and again stood out in the cinema as Rocco, in the film Por la libre.

Ex Output:
b