user: Question: Which grades have students smaller than 430, and a 2007 API of 510?
Columns: ['School name', 'address', 'students', 'grades', '2007 API']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Garfield Elementary', '13050 Aurora Drive San Leandro 94577-3159', 389.0, 'K–5', 704.0]
SQL:

assistant: SELECT "grades" FROM "Table" WHERE "students" < 430.0 AND "2007 API" = 510.0;