Table: chinese_athletes_2008
Columns: medal
name
sport
event
date

Question: What event had Xu Zhilin competing?
SQL: SELECT "event" FROM chinese_athletes_2008 WHERE "name" = 'xu zhilin'

Question: What sport has Ma Yuxi in it?
SQL: SELECT "sport" FROM chinese_athletes_2008 WHERE "name" = 'ma yuxi'