user: Question: What is the second year class following Pag-unawa?
Columns: ['Subjects', 'First Year', 'Second Year', 'Third Year', 'Fourth Year']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Science', 'General Science', 'Biology', 'Chemistry', 'Physics']
SQL:

assistant: SELECT "Second Year" FROM "Table" WHERE "First Year" = 'Pag-unawa';