user: Question: What is the lowest Half-Life with a Yield, Neutrons per Fission greater than 0.0054600000000000004 and a Fraction less than 0.002568?
Columns: ['Group', 'Half-Life (s)', 'Decay Constant (s −1 )', 'Yield, Neutrons per Fission', 'Fraction']
Types: ['real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 55.72, 0.0124, 0.00052, 0.000215]
SQL:

assistant: SELECT MIN("Half-Life (s)") FROM "Table" WHERE "Yield, Neutrons per Fission" > 0.0054600000000000004 AND "Fraction" < 0.002568;