A signal can be constituted-of-or-filled-with hope.Logical formLearned from90 sentences. A signal may undergo a transmission.Logical formLearned from89 sentences. (Channel signals) can be digital.Logical formLearned from89 sentences. (Channel signals) can be up-converted by a (processing capability).Logical formLearned from89 sentences. A nature may pertain-to a signal.Logical formLearned from88 sentences. A signal can be dramatic.Logical formLearned from88 sentences. A signal can be to a person.Logical formLearned from88 sentences. Signals can be ambiguous.Logical formLearned from88 sentences. A signal can be useful.Logical formLearned from87 sentences. A signal can be constituted-of-or-filled-with distress.Logical formLearned from87 sentences. Signals may pertain-to a country.Logical formLearned from87 sentences. An administration may send signals.Logical formLearned from87 sentences. A signal can be true.Logical formLearned from87 sentences. (Nerve signals) can be from a vocal tract.Logical formLearned from86 sentences. A (buy signal) can be black.Logical formLearned from86 sentences.