original question: Which conference series belongs to the same conference event as [Moscone Center]?
answer: google i/o
answer type: Conference series.
auxiliary information: Moscone Center is the largest convention and exhibition complex in San Francisco, California. It comprises three main halls: Two underground halls underneath Yerba Buena Gardens, known as Moscone North and Moscone South, and a three-level Moscone West exhibition hall across 4th Street. It was initially built in 1981 by architects Hellmuth, Obata & Kassabaum as one single hall, Moscone South, and named after San Francisco former mayor George Moscone, who was assassinated in November 1978.
What is the conference series that belongs to the same conference event as [Moscone Center]?