What lane is David Carry in heat 1?
CREATE TABLE "semifinals" (
  "rank" real,
  "heat" real,
  "lane" real,
  "name" text,
  "nationality" text,
  "100m" real,
  "150m" text,
  "time" text
);
SELECT COUNT("lane") FROM "semifinals" WHERE "heat"=1 AND "name"='david carry';