Definition: 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.
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".


b