Question: Which video game published by Sega in 2001 was the sequel to a video game developed by Ys Net?
Sentence (from "Shenmue (series)"): Shenmue" and "Shenmue II" were developed by Sega AM2 and published by Sega for Dreamcast on December 29, 1999, and September 6, 2001 respectively; "Shenmue II" was ported to Xbox in 2002. "
Relevant evidence: No