What is the lowest Half-Life with a Yield, Neutrons per Fission greater than 0.0054600000000000004 and a Fraction less than 0.002568?
CREATE TABLE "principle" (
  "group" real,
  "half_life_s" real,
  "decay_constant_s_1" real,
  "yield_neutrons_per_fission" real,
  "fraction" real
);
SELECT MIN("half_life_s") FROM "principle" WHERE "yield_neutrons_per_fission">0.0054600000000000004 AND "fraction"<0.002568;