Database: mental_health_survey
Question: Please list all the answers to the question "Any additional notes or comments" that are not null in 2014's survey.
SQL: SELECT T2.AnswerText FROM Question AS T1 INNER JOIN Answer AS T2 ON T1.questionid = T2.QuestionID WHERE T1.questiontext = 'Any additional notes or comments' AND T2.SurveyID = 2014 AND T2.AnswerText <> -1