You will be given a definition of a task first, then some input of the task.
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: Hisaishi composed three title songs in 1981 - which had the most sales? Passage:In 1985, he founded his own recording studiothe wonder station. Their collaboration has invited comparisons to the collaborations of Steven Spielberg and John Williams. This big break led to Hisaishi's overwhelming success as a composer of film scores. In 1986, , would be the first feature to appear under the Studio Ghibli banner, and its gentle, faintly melancholic tone would become a familiar trademark of much of the studio's later output. And later, in the 1990s, Porco Rosso and Princess Mononoke were released. As Hisaishi strengthened his reputation as one of the budding anime industry's top musical contributors, his compositions (including eight theatrical films and one OAV) would proceed to become some of the very hallmarks of early anime in the 1980s and 1990s. Hisaishi also composed for such TV and movie hits as Sasuga no Sarutobi, Two Down Full Base, Tonde Mon Pe and the anime Tekuno porisu 21C (all 1982), Sasuraiger (1983), Futari Taka (1984), (1985) and Oz no mahotsukai (1986). He also scored the sci-fi adventure series Mospeada (1983), which was later reworked (without his music) into the third segment of Carl Macek's compilation, Robotech. Other films he scored included Mobile Suit Gundam Movie II: Soldiers of Sorrow (1981), Mobile Suit Gundam Movie III: Encounters in Space, (1982), Birth (Basu) (1984), Arion (1986), Robot Carnival (1987), Totoro (1988), Crest of the Royal Family and Maison Ikkoku Apartment Fantasy (both 1988), Venus Wars (1989), Kiki's Delivery Service (1989), Porco Rosso (1992) and Ocean Heaven (2010). He also did theme song arrangements and composed other anime opening, closing, and insert title theme songs such as Maho Shojo Lalabel (1980), Hello! Sandybell (1981), Meiken Jolie (1981), Voltron (1981), Ai Shite Knight (1983), Creamy Mami, the Magic Angel: Curtain Call (1986), and (1988).

Output:
a