Table: mma_fight_results_19
Columns: res
record
opponent
method
event
round
time
location

Question: What is the Location when the time was 11:55?
SQL: SELECT "location" FROM mma_fight_results_19 WHERE "time" = '11:55'

Question: What Round has a Time of n/a, in rio de janeiro , brazil?
SQL: SELECT "round" FROM mma_fight_results_19 WHERE "time" = 'n/a' AND "location" = 'rio de janeiro , brazil'

Question: What is the Round for the jiu-jitsu vs martial arts?
SQL: SELECT "round" FROM mma_fight_results_19 WHERE "event" = 'jiu-jitsu vs martial arts'

Question: What is the Location for the jiu-jitsu vs martial arts?
SQL: SELECT "location" FROM mma_fight_results_19 WHERE "event" = 'jiu-jitsu vs martial arts'

Question: What is the Event when the opponent was wesslan evaristo de oliveira?
SQL: SELECT "event" FROM mma_fight_results_19 WHERE "opponent" = 'wesslan evaristo de oliveira'