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.
--------
Question: Question: When did the group that Lewis made his opera debut with first established? Passage:William Lewis was educated at the University of Colorado, Texas Christian University and New York University. He began his career as a writer and an athlete before deciding to pursue a career in opera. He began his voice training under Karl Kritz and Arthur Faguy Cote in Fort Worth, followed by studies with Susan Seton and Hulda and Luigi Rossini in New York. He made his professional opera debut in 1953 with Fort Worth Opera as Rinuccio in Puccini's Gianni Schicchi. Two years later he won the Metropolitan Opera's Audition of the Air competition (precursor to the National Council Auditions). Lewis made his debut at the Metropolitan Opera as Narraboth in Salome on March 1, 1958 and subsequently sang in 234 performances in his 35 years with the company. In 1975 he made his debut at San Francisco Opera as Steuermann and Erik in The Flying Dutchman and has sung in sixteen different productions with the company in subsequent seasons. In 1981 he made his debut at the Salzburg Festival in the title role of Offenbach's The Tales of Hoffmann, returning there for the following four years in such roles as Arbace in Idomeneo and the First Geharnischter in The Magic Flute. In 1990 he made his debut at the Teatro Lirico in the world premiere of Azio Corghi's Blimunda.

Answer: b

Question: Question: What year was the lead singer, writer, and arranger of the album World born? Passage:World was published by Magnet Records label, distributed by Warner Music major, and managed by FXU Management (some songs being published by EMI Publishing and Pumphouse Songs Inc.), and reached Number five in the UK Albums Chart. The album was mostly written, arranged, played and produced by lead singer Peter Cunnah, with the collaboration of some other musicians and vocalists. In particular, the album features TJ Davis on background vocals on all tracks (besides co-lead vocals on "The Power (Of All the Love in the World)"), as well as Simon Ellis and Nick Beggs from Ellis, Beggs & Howard. Ellis plays additional keyboards on "You've Saved My World" and "Heart of Gold", while Beggs plays bass guitar and chapman stick on "Hold Me Now". Three singles were taken from the album; "Shoot Me with Your Love" (UK #7), "Party Up the World" (UK #20) and "The Power (Of All the Love in the World)" (UK #40).

Answer: b

Question: Question: What was the population of Lake City, Minnesota the year Eugene Curnow was born? Passage:Dr. Curnow was born on February 8, 1925, in Lake City, Minnesota. He grew up in various towns in California, including a gold mining claim in the small settlement of Poverty Flat, population 12. In 1942, he graduated from Shasta Union High School in Redding, California. He then moved to Seattle where he enlisted in the Navy. He attended one quarter at Seattle College as a pre-med student before the Navy sent him to the University of New Mexico in Albuquerque, where he continued his pre-med studies for the rest of the year. In December 1943, he was assigned to the Hospital Corps School in San Diego, California, for a six-week training course. In February 1944, he was sent to Mare Island Navy Hospital at Imola, California, where he cared for returning combat veterans who were suffering from post-traumatic stress disorder (PTSD). He was transferred in October 1944 to Astoria, Oregon, and was assigned to the USS Sanborn, APA 193 as a member of the ship's crew.

Answer:
b