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

Question: what is the react when the lane is 3 and heat is 2?
SQL: SELECT "react" FROM "semifinals" WHERE "lane"=3 AND "heat"=2;

Question: what is the highest lane number for johan wissman when the react is less than 0.242?
SQL: SELECT MAX("lane") FROM "semifinals" WHERE "name"='johan wissman' AND "react"<0.242;

Question: what is the heat when the country is united kingdom and react is less than 0.232?
SQL: SELECT MAX("heat") FROM "semifinals" WHERE "country"='united kingdom' AND "react"<0.232;

Question: what is the react when the country is sweden and the lane is higher than 6?
SQL: SELECT SUM("react") FROM "semifinals" WHERE "country"='sweden' AND "lane">6;