query: SELECT Author FROM submission WHERE Submission_ID NOT IN (SELECT Submission_ID FROM acceptance)
question: List the authors who do not have no submission to any workshop.
query_toks: SELECT Author FROM submission WHERE Submission_ID NOT IN ( SELECT Submission_ID FROM acceptance )
query_toks_no_value: select author from submission where submission_id not in ( select submission_id from acceptance )
question_toks: List the authors who do not have no submission to any workshop.