user: Question: What is the Time/Retired that has a Grid smaller than 8, 73 laps, and a Constructor of Williams - BMW?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Rubens Barrichello', 'Ferrari', 73.0, '1:31:07.934', 2.0]
SQL:

assistant: SELECT "Time/Retired" FROM "Table" WHERE "Grid" < 8.0 AND "Laps" = 73.0 AND "Constructor" = 'Williams - BMW';