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: What college did the center attend who Payton was traded for prior to the 2004-05 season? Passage:Prior to the 200405 season, the Lakers traded Payton and Rick Fox to the Boston Celtics for center Chris Mihm, small forward Jumaine Jones and point guard Chucky Atkins. While Payton expressed displeasure with the trade, he ultimately did report to Boston and began the 200405 season as the Celtics' starting point guard. On February 24, 2005 Payton was traded to the Atlanta Hawks in a deal that brought former Celtic Antoine Walker back to Boston. The Hawks then waived Payton immediately following the trade, and he returned a week later to Boston as a free agent. Payton started all 77 games he played for Boston and averaged 11.3 points per game and 6.1 assists as the Celtics won the Atlantic Division before losing in the first round to the Indiana Pacers.

Ex Output:
b

Ex Input:
Question: What army did the 13th Iowa Infantry Regiment fight for during the Civil War? Passage:At the beginning of the Civil War, he became a lieutenant and adjutant of the 13th Iowa Infantry Regiment. He fought at the battle of Shiloh and Corinth. He served as assistant adjutant general in the XVII Corps during the siege of Vicksburg and assistant adjutant general to the Army of the Tennessee during the Atlanta Campaign. He was made a brevet brigadier general for service in the Atlanta Campaign and was assigned to an infantry brigade in the XV Corps during the Carolinas Campaign, but was only lightly engaged in fighting. He rose to the full rank of brigadier general of volunteers (1865), and was made a brevet major general at the close of the same year for gallant and meritorious services during the war.

Ex Output:
b

Ex Input:
Question: How many denizens did Quezon City have when Stay Alive was launched there? Passage:Stay Alive was launched on November 22, 2011 at Patio Carlitos, White House, Quezon City. Nina sang three songs from the album including the lead single "Dance", which she performed with choreographed dance moves. She also performed the critically acclaimed ballad, "However Much Love", and her own composition, "You Should Know". On December 1, 2011, she promoted her album on Happy Yipee Yehey! after performing the song live, where she also did a duet with the show's host Randy Santiago. On December 11, 2011, she launched the album in Party Pilipinas, the rival program of variety show ASAP which she became part of. She performed "Dance" with Frencheska Farr and Julie Anne San Jose. She also guested in Joe D' Mango's midnight radio show on DZMM entitled LoveNotes, where she sang a few songs from the album including "Hagkan", "Laging Ikaw" and "However Much Love". Also, the music video for "Dance" had its nationwide premiere during the show. The episode aired on December 13, 2011. On New Year's Eve 2012, the song was played inside Big Brother's house on . On January 29, 2012, Stay Alive Mall Tour had its first leg at Market! Market! Taguig, where Nina performed most of the album songs with intensive choreography including "Dance", "Staying Alive" and "Only with You". On February 5, 2012, she promoted the album at SM City Baguio as part of the mall tour, where she performed "Dance" and other Stay Alive songs. She also sang her number-one hits "Love Moves in Mysterious Ways" and "Someday".

Ex Output:
b