CREATE TABLE "principle" (
  "group" real,
  "half_life_s" real,
  "decay_constant_s_1" real,
  "yield_neutrons_per_fission" real,
  "fraction" real
);

Question: What is the yield, neutrons per fission of the group with decay constants less than 0.301, a half-life of 22.72, and a group number larger than 2?
SQL: SELECT SUM("yield_neutrons_per_fission") FROM "principle" WHERE "decay_constant_s_1"<0.301 AND "half_life_s"=22.72 AND "group">2;

Question: What is the decay constant with a half-life less than 22.72, a yield, neutrons per fission of 0.0031000000000000003, and a group number less than 3?
SQL: SELECT COUNT("decay_constant_s_1") FROM "principle" WHERE "half_life_s"<22.72 AND "yield_neutrons_per_fission"=0.0031000000000000003 AND "group"<3;

Question: What is the lowest half-life with a yield, neutrons per fission bigger than 0.0031000000000000003 and a decay constant less than 0.030500000000000003?
SQL: SELECT MIN("half_life_s") FROM "principle" WHERE "yield_neutrons_per_fission">0.0031000000000000003 AND "decay_constant_s_1"<0.030500000000000003;