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 large is the lake that the trail passes south of? Passage:Reports from the fur trappers who first entered the mountains and those following mention the trail through the pass as being in long term us by the Shoshone, Bannack, Arapaho, Gros Ventre, Flat Head or Bitterroot Salish, Nez Perce, Crow and others. The pass provide access into three river sheds. An east-west route ran from the east up the Wind River valley and provided a western route by the Gros Ventre or Hoback Rivers to the Valley of the Snake River in Jackson's Hole. To go south, the traveler would follow the Green River. The Union Pass Route was an extension of a North South Route up the Valley of the Yellowstone. Coming up the Valley of the Thoroughfare, west of the Absaroka Mountains and south of Yellowstone Lake, the trail followed the North Fork of the Yellowstone. Crossing over Two Ocean Pass, the trail split east and west around Terrace Mountain into the Wind River Valley at DuNoir. From Union Pass south bound travelers could use the Green River Valley to connect east through South Pass or west toward the Snake River.

Output: b

Input: Consider Input: Question: What year was the building that Predic painted 13 paintings in built? Passage:He was born in Orlovat, and attended primary school in Crepaja. After finishing his gymnasium in Pancevo (this school was later named after him), he went to Vienna to study on academy in 1876. He graduated from the Academy of Fine Arts of Vienna in 1880. He studied in the class of professor Christian Griepenkerl, who also taught Predic's contemporary Paja Jovanovic. During his studies, he received the Gundel's prize for a male model painting in oil. In 1882, he worked in private studio of professor Grieppenkerl, and in the period from 1883 to 1885 he was an assistant professor of the Department of Antiquity at the Art academy in Vienna. During that time, under the instruction of professor Grieppenkerl, and the renowned architect Theophil Freiherr von Hansen, he painted 13 wall paintings of ancient, historical and mythological compositions for the frieze in the House of Lords at Reichsratsgebaude (Imperial Council Building) in Vienna.

Output: b

Input: Consider Input: Question: What school did the choreographer of the performance of "Calling You" study choreography in? Passage:Three songs have been used for the reality television series So You Think You Can Dance. "Ramalama (Bang Bang)" was used for a group performance on the sixth week of the second season. Contestants wore costumes and make-up to show them as zombies in a performance combining the 1968 horror film Night of the Living Dead with Michael Jackson's 1983 music video for "Thriller". At the 59th Primetime Emmy Awards, the performance was part of a three-way tie for Outstanding Choreography with a So You Think You Can Dance performance of Celine Dion's "Calling You", choreographed by Mia Michaels, and the television special Tony Bennett: An American Classic. "Night of the Dancing Flame" was used for a couple's jazz dance in the fourth week of the following season with contestants Neil Haskell and Lauren Gottlieb. The performances were choreographed by Wade Robson. Robson also did a number to "Ruby Blue" in the fifth season of So You Think You Can Dance.
Output: b