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: How many soldiers died in the war that Charles K. Erwin fought in? Passage:Born in Washington, Lycoming County, Pennsylvania, Erwin settled in Portage, Wisconsin in 1853. From 1855 to 1868, Erwin lived in Jo Daviess County, Illinois and then in Stephenson County, Illinois. During the American Civil War, Erwin served in the 45th Illinois Volunteer Infantry Regiment. In 1868, Erwin moved to Tomah, Wisconsin and was in the mercantile business. From 1879 to 1882 and 1886, Erwin served on the Tomah Board of Education and was president of the school board. From 1882 to 1889, Erwin served in the Wisconsin State Senate and was a Republican. In 1889, Erwin served as postmaster for Tomah, Wisconsin. In 1902, Erwin moved with his family to Milwaukee, Wisconsin. Erwin died suddenly in Savanna, Illinois just as he was about get on a train for a trip to Omaha, Nebraska.


Ex Output:
b


Ex Input:
Question: On what date did Recitation win its maiden race at Newbury Racecourse? Passage:After finishing third over five furlongs on his racecourse debut, Recitation won a maiden race over the same distance at Newbury Racecourse, beating I'll See You by half a length. The colt was then moved up sharply in class for the Group Three Coventry Stakes over six furlongs at Royal Ascot in June in which he was ridden by Greville Starkey and started at odds of 11/1. In a performance which Timeform described as "a revelation", Recitation took the lead a quarter mile from the finish and drew clear of the field to win easily by five lengths from Motavato, Bel Bolide and Another Realm. The form of the race was subsequently boosted when the third and fourth placed horses won the Gimcrack Stakes and the Richmond Stakes respectively. In the July Stakes at Newmarket Racecourse Recitation started 2/5 favourite against two opponents, but was beaten two and a half lengths by Age Quod Agis.


Ex Output:
a


Ex Input:
Question: In which country was Kalinderu born in? Passage:Born in Bucharest on December 28 or 29, 1840, his father was Lazăr (Lazaros) Kalenderoglu (or Calenderoglu). Of possible Smyrniote origin, the family functioned as one of the largest banking and exporting institutions in Wallachia, and then in the United Principalities. Lazăr had risen into the ranks of Wallachia's boyar nobility: joining the Bucharest local government in 1838, 1844, and 1847, he was awarded the title of pitar, advancing to paharnic in the 1850s. His son would later falsely claim that the Kalenderoglus played a part in the Wallachian Revolution of 1848, although Lazăr is known to have held relevant positions in the National Party in 1857, briefly serving as its chairman alongside Constantin A. Crețulescu. The last-ever tenant and tax collector of Predeal customs, Kalenderoglu had his estate in Olt County, outside Colonești, reduced during the land reform of 1864. Another of his estates, at Bălcești, was repurchased by the Bălcescu boyars. However, he still left Ioan the manor of Schitu-Greci.


Ex Output:

b