user: Question: what is the production where the parent company is Ariel?
Columns: ['Company', 'Parent company', 'Parent headquarters', 'Plant', 'Models produced', 'Production (latest figures)']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['AC Cars', 'AC Cars', 'United Kingdom', 'West Norwood', 'AC MKVI', 'n/a']
SQL:

assistant: SELECT "Production (latest figures)" FROM "Table" WHERE "Parent company" = 'Ariel';