In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Ex Input:
Question: Which countries made up the group that invaded Yugoslavia? Passage:On 6April 1941, Yugoslavia was invaded from all sides by the Axis powers, led by German forces. Stojanovic was assigned as a physician to an infantry battalion based in Banja Luka. For several days after the invasion this battalion moved toward Dalmatia, before it completely disintegrated without fighting the enemy, and Stojanovic returned to Prijedor. The Royal Yugoslav Army capitulated on 17April, and the Axis powers proceeded to dismember Yugoslavia. Almost all of modern-day Croatia, all of modern-day Bosnia-Herzegovina, and parts of modern-day Serbia were combined into a puppet state called the Independent State of Croatia (, NDH). It was an "Italian-German quasi-protectorate", which was controlled by the fascist Ustase led by Ante Pavelic. One of its policies was to eliminate the ethnic Serb population of the NDH through mass killings, expulsions and forced assimilation, and many Serbs fled from the NDH to the German-occupied territory of Serbia.

Ex Output:
b

Ex Input:
Question: Are the two high schools that Keogan began coaching at located in the same state? Passage:The Minnesota Lake, Minnesota native attended University of Minnesota from 1909 to 1913. He began coaching high school varsities after his freshman year in college, guiding first Lockport High School (19101911) followed by Riverside High School (19111912). Meanwhile, he was also coaching several college basketball teams: Charles City College in Iowa (19091910), Superior State Teachers College in Wisconsin (19121914), Saint Louis University (191415) and the University of St. Thomas in St. Paul, Minnesota (19171918). During World War I he served at Great Lakes Naval Training Station. After briefly coaching Allegheny College in Meadville, Pennsylvania (19191920) and Valparaiso, Keogan arrived at University of Notre Dame. He served as head basketball and baseball coach, as well as assistant to the legendary football coach Knute Rockne. Keogan compiled a 327961 at Notre Dame.

Ex Output:
b

Ex Input:
Question: How wide is the body of water where the troops lost some of their supplies and equipment? Passage:The first indigenous group that was submitted to the Spanish Crown were the Tairona, who inhabit the area around Santa Marta, presently living on the slopes of the Sierra Nevada de Santa Marta and in Tayrona Park. On April 6, 1536, triggered by the stories of the mythical "City of Gold" El Dorado, Gonzalo Jimenez de Quesada organised two groups of conquistadors towards the inner highlands of the Colombian Andes, as first European explorers. The army with the brothers De Quesada and more than 700 soldiers and 80 horses went over land and another, of more than 200 men, embarked in boats and ascended the Magdalena River from Cienaga, in search of its origin. The list of the soldiers that eventually made it to Funza has been compiled by Juan Florez de Ocariz (1612-1692). The land army was led by Gonzalo with Hernan second in command. The first indigenous group conquered, were the Chimila people. Continuing south, the troops had to cross inhospitable terrains full of creeks and part of their supplies and equipment was lost when crossing the Ariguani River.

Ex Output:
a