user: Question: Who had the lowest Best time that also had a Qual 2 of 49.887?
Columns: ['Name', 'Team', 'Qual 1', 'Qual 2', 'Best']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Sébastien Bourdais', 'Newman/Haas Racing', '50.160', '48.989', 48.989]
SQL:

assistant: SELECT MIN("Best") FROM "Table" WHERE "Qual 2" = '49.887';