A color may pertain-to a lens.Logical formLearned from12 sentences. A lens can be strong.Logical formLearned from12 sentences. An inside may pertain-to a lens.Logical formLearned from12 sentences. A lens can be large.Logical formLearned from12 sentences. A (lens element) may be supported on spheres.Logical formLearned from12 sentences. A lens may pertain-to a faith.Logical formLearned from12 sentences. A lens can be flexible.Logical formLearned from12 sentences. A person may use some lens.Logical formLearned from12 sentences. A lens can be sophisticated.Logical formLearned from12 sentences. A lens can be cloudy.Logical formLearned from12 sentences. A (contact lens) may contain a (chemical sensor).Logical formLearned from12 sentences. A (chemical sensor) can be at an edge of a lens.Logical formLearned from12 sentences. A lens can be by a company.Logical formLearned from11 sentences. (Lens cameras) can be fixed.Logical formLearned from11 sentences. A lens can be improved.Logical formLearned from11 sentences.