You will be given a definition of a task first, then some input of the task.
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.

Question: Were the Subics the dominant ethnic group of Bosnia? Passage:In 1290 Hungarian King Ladislaus IV died leaving no heirs to the throne. The cousin of Ladislaus IV, Andrew III, was crowned King, despite the desire of the sister of the former King Ladislaus IV, Mary of Hungary, Queen of Naples, who wanted her son, Charles Martel as the new King in Hungary. The latter party had much more support, so Pope Nicholas IV had crowned Charles Martel as King of Hungary. This movement was supported by the most powerful Croatian nobility, the Subics, Princes of Bribir. As the current head of the family, Paul Subic was also son-in-law of King Stefan Dragutin, family connections made Kotroman support Charles Martel's crowning. To increase his influence in Kotroman's realm, Charles Martel issued numerous edicts to split the land among the lesser gentry to gain support for his reign. It appears that he gave the reign over Bosnia to the Subics. Charles Martel died unexpectedly in 1295, before the campaign to cease the power in Hungary was finished. The Queen of Naples and sister of former King Ladislaus IV, Mary, had then decided to put her grandson, son of Charles Martel, Charles Robert as the future King of Hungary. Pope Boniface VIII declared the twelve-year-old boy as King Charles I of Hungary in 1297. Paul Subic of Croatia declared himself as "Dominus of Bosnia" in 1299 and gave the title of Bosnian Ban to his brother, Mladen I Subic. All of Kotroman's land except for the Lower Edges, which was ruled by Prince Hrvatin Stjepanic as a vassal of the Subics, was held by the House of Subic; as was confirmed by Charles I Robert. Paul Subic wanted to bring King Charles Robert to Split across Croatia to Zagreb, which would become the main station of his campaign against King Andrew III of Hungary. During the preparations for war, Andrew III died unexpectedly. Charles Robert assessed the Hungarian throne, but had to fight numerous opponents to his regime up to 1309.

Output:
a