instruction: Answers with > 50 score and no comments.
response: SELECT CONCAT('http://unix.stackexchange.com/a/', A.Id), A.Score, Q.Title, Users.DisplayName FROM Posts AS A JOIN Posts AS Q ON Q.Id = A.ParentId JOIN Users ON A.OwnerUserId = Users.Id WHERE A.PostTypeId = 2 AND A.Score > 50 AND A.CommentCount = 0 ORDER BY A.Score DESC