Table: spaceflights_2009
Columns: start_date_time
duration
end_time
spacecraft
crew

Question: What is the duration of the flight with end time of 21:06?
SQL: SELECT "duration" FROM spaceflights_2009 WHERE "end_time" = '21:06'

Question: What is the spacecraft with end time of 4 September 04:51?
SQL: SELECT "spacecraft" FROM spaceflights_2009 WHERE "end_time" = '4 september 04:51'

Question: What is the crew with the end time of 21:11?
SQL: SELECT "crew" FROM spaceflights_2009 WHERE "end_time" = '21:11'

Question: What is the duration of the Expedition 20 ISS Zvezda?
SQL: SELECT "duration" FROM spaceflights_2009 WHERE "spacecraft" = 'expedition 20 iss zvezda'

Question: Who was the crew for the duration of 12 minutes?
SQL: SELECT "crew" FROM spaceflights_2009 WHERE "duration" = '12 minutes'