A day can be pristine.Logical formLearned from33 sentences. A (balance sheet) can be pristine.Logical formLearned from33 sentences. A watershed can be pristine.Logical formLearned from33 sentences. A white shirt can be pristine.Logical formLearned from32 sentences. A paradise can be pristine.Logical formLearned from32 sentences. A source can be pristine.Logical formLearned from32 sentences. A character can be pristine.Logical formLearned from31 sentences. Days can be pristine.Logical formLearned from31 sentences. Lawns can be pristine.Logical formLearned from31 sentences. Ones can be pristine.Logical formLearned from30 sentences. A lawn can be pristine.Logical formLearned from30 sentences. A (coral reef) can be pristine.Logical formLearned from30 sentences. Surfaces can be pristine.Logical formLearned from29 sentences. An area can be pristine.Logical formLearned from29 sentences. Waterways can be pristine.Logical formLearned from29 sentences.