A lens can be selective.Logical formLearned from10 sentences. Contact can be with a lens.Logical formLearned from9 sentences. A lens can be opaque.Logical formLearned from9 sentences. A (contact lens wear) can be long-term.Logical formLearned from9 sentences. A lens can be synthetic.Logical formLearned from9 sentences. A lens can be darkened.Logical formLearned from9 sentences. A lens can be microscopic.Logical formLearned from9 sentences. A lens can be protective.Logical formLearned from9 sentences. A (zoom lens) can be on a camera.Logical formLearned from9 sentences. An (object side) may pertain-to a lens.Logical formLearned from9 sentences. A box can be with a lens.Logical formLearned from9 sentences. A lens may aid in an identification.Logical formLearned from9 sentences. A (lens case) may pertain-to a person.Logical formLearned from9 sentences. Photographers may focus by compressing a lens.Logical formLearned from9 sentences. A (lens body) may fit a style.Logical formLearned from9 sentences.