user: Question: What's the production if the technology is Sodium-sulfur batteries and Yes to toxic materials?
Columns: ['Technology', 'Moving Parts', 'Room Temperature', 'Flammable', 'Toxic Materials', 'In production', 'Rare metals']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['flow', 'Yes', 'Yes', 'No', 'Yes', 'No', 'No']
SQL:

assistant: SELECT "In production" FROM "Table" WHERE "Toxic Materials" = 'Yes' AND "Technology" = 'Sodium-sulfur batteries';