Signals can be weak.Logical formLearned from599 sentences. A signal can be green.Logical formLearned from530 sentences. A signal can be received.Logical formLearned from519 sentences. Signals can be acoustic.Logical formLearned from479 sentences. A signal can be electronic.Logical formLearned from410 sentences. A person may get a signal.Logical formLearned from409 sentences. A signal can be incoming.Logical formLearned from405 sentences. A signal may pertain-to a station.Logical formLearned from381 sentences. A signal can be constituted-of-or-filled-with support.Logical formLearned from375 sentences. A signal can be acoustic.Logical formLearned from373 sentences. Signals may undergo a transmission.Logical formLearned from370 sentences. A signal may pertain-to persons.Logical formLearned from367 sentences. Signals can be contradictory.Logical formLearned from359 sentences. Signals may pertain-to a person.Logical formLearned from347 sentences. A signal can be mixed.Logical formLearned from343 sentences.