CREATE TABLE acceptance (submission_id DECIMAL, workshop_id DECIMAL, result TEXT)
CREATE TABLE submission (submission_id DECIMAL, scores DECIMAL, author TEXT, college TEXT)
CREATE TABLE workshop (workshop_id DECIMAL, date TEXT, venue TEXT, name TEXT)

Which college has the most authors with submissions?
SELECT college FROM submission GROUP BY college ORDER BY COUNT(*) DESC LIMIT 1
SELECT "college" FROM "submission" GROUP BY "college" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1