CREATE TABLE "heats" (
  "heat_rank" real,
  "lane" real,
  "swimmer" text,
  "country" text,
  "time" real,
  "overall_rank" text
);

Question: For how long did Bolivia have a lane greater than 6?
SQL: SELECT COUNT("time") FROM "heats" WHERE "country"='bolivia' AND "lane">6;

Question: In heat rank 7, what is the sum of lanes?
SQL: SELECT SUM("lane") FROM "heats" WHERE "heat_rank"=7;

Question: Which country is ranked 56 overall and has a heat rank smaller than 8?
SQL: SELECT "country" FROM "heats" WHERE "heat_rank"<8 AND "overall_rank"='56';

Question: What is the greatest lane with an overall rank of 79 and a time larger than 26.1?
SQL: SELECT MAX("lane") FROM "heats" WHERE "overall_rank"='79' AND "time">26.1;