user: Question: What is the ε (m −1 cm −1 )  of the red dye?
Columns: ['Fluorescent dye', 'Color', 'mass (g/mol)', 'Absorb (nm)', 'Emit (nm)', 'ε (M −1 cm −1 )']
Types: ['text', 'text', 'real', 'real', 'real', 'text']
Sample row: ['FluoProbes 390', 'violet', 343.0, 390.0, 479.0, '24 000']
SQL:

assistant: SELECT "ε (M −1 cm −1 )" FROM "Table" WHERE "Color" = 'red';