CREATE TABLE "expeditions" (
  "expedition" text,
  "crew" text,
  "launch_date" text,
  "flight_up" text,
  "landing_date" text,
  "flight_down" text,
  "duration_days" text
);

Question: Name the duration for georgi grechko
SQL: SELECT "duration_days" FROM "expeditions" WHERE "crew"='Georgi Grechko';

Question: Name the flight up for 10 december 1982 19:02:36 utc
SQL: SELECT "flight_up" FROM "expeditions" WHERE "landing_date"='10 December 1982 19:02:36 UTC';

Question: Name the launch date for  vladimir lyakhov , aleksandr pavlovich aleksandrov
SQL: SELECT "launch_date" FROM "expeditions" WHERE "crew"='Vladimir Lyakhov , Aleksandr Pavlovich Aleksandrov';

Question: Name the flight down for vladimir vasyutin , alexander volkov
SQL: SELECT "flight_down" FROM "expeditions" WHERE "crew"='Vladimir Vasyutin , Alexander Volkov';

Question: Name the duration for  vladimir vasyutin , alexander volkov
SQL: SELECT COUNT("duration_days") FROM "expeditions" WHERE "crew"='Vladimir Vasyutin , Alexander Volkov';