CREATE TABLE "semifinals" (
  "heat" real,
  "lane" real,
  "name" text,
  "country" text,
  "mark" text
);

Question: What is the highest lane value for a mark of 2:02.27 NR, with heats under 2?
SQL: SELECT MAX("lane") FROM "semifinals" WHERE "mark"='2:02.27 nr' AND "heat"<2;

Question: What is the mark for the runner from Mozambique?
SQL: SELECT "mark" FROM "semifinals" WHERE "country"='mozambique';

Question: Who was in lane 6 with a mark of 2:05.58 SB?
SQL: SELECT "name" FROM "semifinals" WHERE "lane"=6 AND "mark"='2:05.58 sb';