Options may undergo a perception.Logical formLearned from9 sentences. A perception can be legitimate.Logical formLearned from9 sentences. Emphasis can be on perception.Logical formLearned from9 sentences. Pheromones may undergo a perception.Logical formLearned from9 sentences. A race may undergo perceptions.Logical formLearned from9 sentences. (Health risks) may undergo a perception.Logical formLearned from9 sentences. A factor can be a perception.Logical formLearned from9 sentences. A painting may undergo a perception.Logical formLearned from9 sentences. States may undergo perceptions.Logical formLearned from9 sentences. Distance may undergo perceptions.Logical formLearned from9 sentences. Perceptions may mount that something-is-the-case.Logical formLearned from9 sentences. Models may show human perception.Logical formLearned from9 sentences. Perception may undergo a delineation.Logical formLearned from9 sentences. A religion may undergo a perception.Logical formLearned from9 sentences. A perception can be low-level.Logical formLearned from9 sentences.