Progress may undergo perceptions.Logical formLearned from11 sentences. Perceptions can be persistent.Logical formLearned from11 sentences. A perception may linger that something-is-the-case.Logical formLearned from11 sentences. Perception can be a factor.Logical formLearned from11 sentences. Work can be on perception.Logical formLearned from11 sentences. Perceptions may coincide.Logical formLearned from11 sentences. A degree can be constituted-of-or-filled-with perception.Logical formLearned from11 sentences. Contrast can be to perceptions.Logical formLearned from11 sentences. Immigrants may undergo perceptions.Logical formLearned from11 sentences. Librarians may undergo a perception.Logical formLearned from11 sentences. A church may undergo a perception.Logical formLearned from11 sentences. Suffering may undergo a perception.Logical formLearned from11 sentences. Teaching may undergo perceptions.Logical formLearned from11 sentences. Work can be on perception.Logical formLearned from11 sentences. A perception may pertain-to a us-state.Logical formLearned from11 sentences.