Table: wushu_results
Columns: rank
athlete
nandao
nanquan
total

Question: Which Nanquan has a Nandao larger than 9.49, and a Rank of 4?
SQL: SELECT "nanquan" FROM wushu_results WHERE "nandao" > 9.49 AND "rank" = 4

Question: Which Nanquan has a Nandao smaller than 9.44, and a Rank smaller than 9, and a Total larger than 18.68?
SQL: SELECT MIN("nanquan") FROM wushu_results WHERE "nandao" < 9.44 AND "rank" < 9 AND "total" > 18.68