Question: What is the lowest group number that has a Fraction less than 0.000748, a Half-Life of 55.72 and a Decay Constant larger than 0.012400000000000001?
SQL: SELECT MIN("Group") FROM "2-1221448-1" WHERE "Fraction" < 0.000748 AND "Half-Life (s)" = 55.72 AND "Decay Constant (s −1 )" > 0.012400000000000001;

Question: What is the lowest Half-Life with a Yield, Neutrons per Fission greater than 0.0054600000000000004 and a Fraction less than 0.002568?
SQL: SELECT MIN("Half-Life (s)") FROM "2-1221448-1" WHERE "Yield, Neutrons per Fission" > 0.0054600000000000004 AND "Fraction" < 0.002568;