user: Question: How many websites are there for the school with 1939 students?
Columns: ['School', 'City / Town', 'Website', 'Size', 'Principal', 'Grades', 'IDOE Profile']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Aurora Alternative High School', 'Bloomington', 'Website', 80.0, 'Charles Holloway', '09-12', 'Snapshot']
SQL:

assistant: SELECT COUNT("Website") FROM "Table" WHERE "Size" = 1939.0;