A spectrum may be represented.Logical formLearned from6 sentences. A (spectrum auction) can be in a country.Logical formLearned from6 sentences. A spectrum can be a resource.Logical formLearned from6 sentences. Devices may use spectrum.Logical formLearned from6 sentences. A spectrum may pertain-to a planet.Logical formLearned from6 sentences. A spectrum may pertain-to music.Logical formLearned from6 sentences. A band can be a portion of a (radio spectrum).Logical formLearned from6 sentences. A (power spectrum) may pertain-to a cmb.Logical formLearned from6 sentences. Bands can be in a spectrum.Logical formLearned from6 sentences. A region may pertain-to an optical spectrum.Logical formLearned from6 sentences. A spectrum may pertain-to a cosmic (microwave background).Logical formLearned from6 sentences. Parts may pertain-to a (radio spectrum).Logical formLearned from6 sentences. Portions may pertain-to a visible spectrum.Logical formLearned from6 sentences. A length may pertain-to a spectrum.Logical formLearned from6 sentences. A (color spectrum) can be visible.Logical formLearned from6 sentences.