The following are ads that appeared in a newspaper over a period of four days - the last three hopelessly trying to correct the first day's mistake. MONDAY: For sale: R.D. Jones has one sewing machine for sale. Phone 555-0707 after 7 P.M.. and ask for Mrs. Kelly who lives with him cheap. TUESDAY: Notice: We regret having erred In R.D. Jones' ad yesterday. It should have read "One sewing machine for sale cheap. Phone 555-0707 and ask for Mrs. Kelly, who lives with him after 7 P.M." WEDNESDAY: Notice: R.D. Jones has informed us that he has received several annoying telephone calls because of the error we made in the classified ad yesterday. The ad stands correct as follows: "For sale -- R.D. Jones has one sewing machine for sale. Cheap. Phone 555-0707 after 7 P.M. and ask for Mrs. Kelly who loves with him." THURSDAY: Notice: I, R.D. Jones, have no sewing machine for sale. I smashed it. Don't call 555-0707 as I have had the phone disconnected. I have not been carrying on with Mrs. Kelly. Until yesterday she was my housekeeper but she quit!