user: Question: What unit has Gen et sp nov as the novelty?
Columns: ['Name', 'Novelty', 'Status', 'Authors', 'Unit', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Actinidia oregonensis', 'Sp nov', 'valid', 'Manchester', 'Clarno Formation', 'USA']
SQL:

assistant: SELECT "Unit" FROM "Table" WHERE "Novelty" = 'Gen et sp nov';