What is the smallest number of innings with a strike rate of 72.05 and under 297 balls faced?
CREATE TABLE "sri_lanka" (
  "name" text,
  "innings" real,
  "runs_scored" real,
  "balls_faced" real,
  "average" real,
  "s_r" real
);
SELECT MIN("innings") FROM "sri_lanka" WHERE "s_r"=72.05 AND "balls_faced"<297;