user: Question: What chassis does the Shadow built car use?
Columns: ['Entrant', 'Constructor', 'Chassis', 'Engine', 'Driver']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Team Ensign', 'Ensign', 'N180B', 'Cosworth DFV V8', 'Jim Crawford']
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Constructor" = 'Shadow';