A layer can be constituted-of-or-filled-with sour cream.Logical formLearned from9 sentences. A personality can be sour.Logical formLearned from9 sentences. Some item can be a sour cream.Logical formLearned from9 sentences. A person may eat sour cream on latkes.Logical formLearned from9 sentences. (Land deals) may be gone sour.Logical formLearned from9 sentences. An image can be sour.Logical formLearned from9 sentences. A company may blame a flap on sour grapes.Logical formLearned from9 sentences. A love may be gone sour.Logical formLearned from9 sentences. A person may get sour.Logical formLearned from9 sentences. A news can be sour.Logical formLearned from9 sentences. A beef can be sour.Logical formLearned from9 sentences. Bread can be sour.Logical formLearned from9 sentences. A spirit can be sour.Logical formLearned from9 sentences. Juices can be sour.Logical formLearned from9 sentences. Air can be sour.Logical formLearned from9 sentences.