user: Question: what is the reference when the strain is MSB8?
Columns: ['Species', 'Strain', 'Type', 'Base Pairs', 'Genes', 'Reference']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Fervidobacterium nodosum', 'Rt17-B1', 'Thermotogae', '1,950,000', 1750.0, '2009']
SQL:

assistant: SELECT "Reference" FROM "Table" WHERE "Strain" = 'MSB8';