query: SELECT count(*) FROM scientists WHERE ssn NOT IN (SELECT scientist FROM AssignedTo)
question: How scientists many does not having em projects a-assigned they?
query_toks: SELECT count ( * ) FROM scientists WHERE ssn NOT IN ( SELECT scientist FROM AssignedTo )
query_toks_no_value: select count ( * ) from scientists where ssn not in ( select scientist from assignedto )
question_toks: How scientists many does not having em projects a-assigned they?