Devices may operate in a spectrum.Logical formLearned from5 sentences. Spectrum may undergo an expansion.Logical formLearned from5 sentences. A broad spectrum can be constituted-of-or-filled-with (health threats).Logical formLearned from5 sentences. Disciplines can be across a spectrum.Logical formLearned from5 sentences. Frequency may hop (spread spectrum).Logical formLearned from5 sentences. A person may get a spectrum.Logical formLearned from5 sentences. A spectrum can be constituted-of-or-filled-with researcher.Logical formLearned from5 sentences. Variations can be in a spectrum.Logical formLearned from5 sentences. A spectrum can be constituted-of-or-filled-with achievement.Logical formLearned from5 sentences. A spectrum can be constituted-of-or-filled-with articles.Logical formLearned from5 sentences. A feminine side may pertain-to a spectrum.Logical formLearned from5 sentences. A segment may pertain-to an electromagnetic spectrum.Logical formLearned from5 sentences. Contributions can be to a spectrum.Logical formLearned from5 sentences. A spectrum can be constituted-of-or-filled-with considerations.Logical formLearned from5 sentences. A spectrum can be constituted-of-or-filled-with population.Logical formLearned from5 sentences.