After his beloved horse died, a man wanted to place an ad in the newspaper like this: Horse saddle and bridle for $50.Inadvertently（非故意地） the paper added a comma to the ad, which read instead:Horse, saddle and bridle for $50.Immediately someone responded to the ad, That's an awfully cheap price for a horse, said the caller, What's wrong with your horse?Well, he is dead, replied the man who placed the erroneously（错误地） typed ad.