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: Which of the schools that Ari Brynjolfsson attended or worked at has existed the longest? Passage:Ari Brynjolfsson was born in Akureyri, Iceland, one of the seven children of Brynjolfur Sigtryggsson and Gurun Rosinkarsdottir from Horgardalur. He lived in Krossanes, Eyjafjorur and graduated from Menntaskolinn a Akureyri in 1948, then studied nuclear physics at the Niels Bohr Institute, University of Copenhagen, Denmark, from 1948 to 1954, gaining his PhD, with a thesis which dealt with a device he had constructed for accurately measuring magnetism in rocks. Following this he became a special research fellow of the University of Iceland from 1954 to 1955, then an Alexander von Humboldt fellow of the University of Gottingen, Germany, from 1955 to 1957. While at Gottingen he contributed important work in magnetic moments, using a self-devised instrument with which he and others provided the strongest evidence to that date for magnetic field reversals.

Ex Output:
a

Ex Input:
Question: How old is the Sullivan's co-star in Annie Get Your Gun? Passage:On Broadway, Sullivan appeared as Suky Tawdry in the 1989 revival of The Threepenny Opera and as Lorelei Lee in the 1995 revival of Gentlemen Prefer Blondes. She toured in Annie Get Your Gun with Cathy Rigby and also performed in Sugar and Born Yesterday. She, Mark Nadler, and Ruth Leon wrote American Rhapsody: A New Musical Revue, which she and Nadler performed at the off-Broadway Triad Theatre between November 2000 and June 2002. The musical was nominated for the Lucille Lortel Award for Outstanding Musical of 2001 and the Drama Desk Award for Outstanding Musical Revue of 2000-2001 and won the MAC Award for Best Musical Revue. She also appeared in the New York City productions A... My Name Is Alice in 1984 and 1992 and Splendora in 1995, and performed in the Musicals Tonight concert presentations of So Long, 174th Street and By the Beautiful Sea in 1999 and Fifty Million Frenchmen in 2006.

Ex Output:
b

Ex Input:
Question: In 2004 which team did Burton pitch more innings for? Passage:The Oakland Athletics selected Burton out of Western Carolina University in the eighth round of the 2002 Major League Baseball draft. He lost his remaining eligibility at Western Carolina by signing with Oakland on June 12, 2002. The A's sent him to their Single-A affiliate, the Vancouver Canadians. With Vancouver he had a 04 winloss record with a 3.58 earned run average (ERA) in 13 games. He followed up his 2002 season with 15 appearances for the Kane County Cougars in 2003. With Kane County he improved both his winloss ratio to a 21 and his ERA to 2.27. The 2004 season was less consistent for Burton, splitting time between two of the Athletics farm teams, the Arizona League Athletics (AZL Athletics) (Rookie League) and the Modesto A's (Single-A). Burton had a 10 record and a 4.16 ERA with the AZL Athletics. While in Modesto he had a 32 winloss ratio and a 4.78 ERA. Overall, Burton pitched a combined 53.2 innings in 15 games in 2004. Burton spent the 2005 season with the Stockton Ports, another Oakland Single-A affiliate and went 44 with a 2.60 ERA. The 2006 season would turn out to be Burton's final year in Oakland's farm system, and Burton spent it with the Midland RockHounds. With the RockHounds he had a 65 record and a 4.14 ERA in a then career high 53 appearances.

Ex Output:
a