CREATE TABLE "semifinal_2" (
  "rank" real,
  "lane" real,
  "athlete" text,
  "nationality" text,
  "time" real
);

Question: Which Athlete has a Rank larger than 1, and a Lane larger than 7, and a Nationality of china?
SQL: SELECT "athlete" FROM "semifinal_2" WHERE "rank">1 AND "lane">7 AND "nationality"='china';

Question: How many Lanes have a Time larger than 13.59, and a Rank larger than 8?
SQL: SELECT SUM("lane") FROM "semifinal_2" WHERE "time">13.59 AND "rank">8;

Question: How many lanes have a Nationality of france, and a Rank larger than 8?
SQL: SELECT SUM("lane") FROM "semifinal_2" WHERE "nationality"='france' AND "rank">8;