Definition: 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: Question: How many soldiers died in the battle lost by Custer? Passage:Following the defeat of Lieutenant Colonel George A. Custer on June 25, 1876, in the Battle of Little Bighorn, the United States government sent a large number of reinforcements into Montana Territory. By autumn, a few bands of the Sioux and Cheyenne tribes had begun returning to the reservations and agencies to acquire food and annuity goods in preparation for winter. The United States Congress had angered many Indians by demanding that they cede the Black Hills to the government in exchange for these promised goods. The army had replaced civilian contractors in charge of the agencies, further convincing many war bands to stay away from them. General Nelson Miles led a mixed force of infantry, artillery and cavalry after Sitting Bull's band, and had effectively defeated them by December. Ranald S. Mackenzie had similarly defeated Dull Knife's Cheyennes, who trekked through snow and icy conditions to join the camp of Crazy Horse in the Tongue River Valley. Concerned with the approaching winter and the destitute condition of Dull Knife's band, Crazy Horse decided to negotiate peace with the army. However, when a group of United States Army Crow scouts murdered Crazy Horse's delegation, the war chief demanded revenge. He led a series of small raids in an effort to draw out Colonel Miles from Tongue River Cantonment. In December, 1876, Colonel Miles led most of nine Infantry companies out of the Cantonment in pursuit of Crazy Horse, marching south, up the Tongue River valley. On December 7, 1876, Miles captured a few Northern Cheyennes, then his force of 436 men camped along the Tongue just south of present-day Birney, Montana. During that night a fresh layer of deep snow fell and temperatures dropped.


b