An investment can be sour with a boast.Logical formLearned from3 sentences. Ratings can be sour.Logical formLearned from3 sentences. Some loans may go sour.Logical formLearned from3 sentences. (News items) can be sour.Logical formLearned from3 sentences. Solutions can be sour.Logical formLearned from3 sentences. Persons may have a sour taste.Logical formLearned from3 sentences. Sentiments can be sour.Logical formLearned from3 sentences. A banquet can be constituted-of-or-filled-with sour grapes.Logical formLearned from3 sentences. Sour grapes can be competitive.Logical formLearned from3 sentences. A season may be gone sour.Logical formLearned from3 sentences. An investment may go sour.Logical formLearned from3 sentences. A family can be sour.Logical formLearned from3 sentences. A lot of investments may go sour.Logical formLearned from3 sentences. A blend can be constituted-of-or-filled-with sour cream.Logical formLearned from3 sentences. A sponge can be sour.Logical formLearned from3 sentences.