Cherry trees can be sour.Logical formLearned from18 sentences. Sour cream can be on a side.Logical formLearned from18 sentences. A mood may remain sour.Logical formLearned from18 sentences. A deal may be gone sour.Logical formLearned from18 sentences. Milk may go sour.Logical formLearned from18 sentences. An investment can be sour.Logical formLearned from18 sentences. Relationships may go sour.Logical formLearned from17 sentences. A container can be constituted-of-or-filled-with sour cream.Logical formLearned from17 sentences. (Gummi worms) can be sour.Logical formLearned from17 sentences. Guys can be sour.Logical formLearned from17 sentences. A creme can be sour.Logical formLearned from17 sentences. A spot can be sour.Logical formLearned from17 sentences. A pisco can be sour.Logical formLearned from17 sentences. A sour cream can be thick.Logical formLearned from17 sentences. Markets can be sour.Logical formLearned from17 sentences.