CREATE TABLE "spacewalks" (
  "spacecraft" text,
  "spacewalker" text,
  "start_utc" text,
  "end_utc" text,
  "duration" text,
  "comments" text
);

Question: When salyut 7 – ve-4 – eva 1 is the spacecraft, what is the duration?
SQL: SELECT "duration" FROM "spacewalks" WHERE "spacecraft"='Salyut 7 – VE-4 – EVA 1';

Question: When first woman eva is the comment what is the end -utc?
SQL: SELECT "end_utc" FROM "spacewalks" WHERE "comments"='First woman EVA';