A signal can be short.Logical formLearned from40 sentences. A signal can be increased.Logical formLearned from40 sentences. A (distress signal) may be sent.Logical formLearned from40 sentences. A signal can be ok.Logical formLearned from40 sentences. Signals may dampen hopes.Logical formLearned from40 sentences. Signals can be automatic.Logical formLearned from39 sentences. Signals may indicate that something-is-the-case.Logical formLearned from39 sentences. A signal can be environmental.Logical formLearned from39 sentences. A signal may be delivered.Logical formLearned from39 sentences. Signals can be sinusoidal.Logical formLearned from39 sentences. Access can be to a (phone signal).Logical formLearned from39 sentences. (Digital signal processing) can be for a (video noise).Logical formLearned from39 sentences. A signal may work.Logical formLearned from39 sentences. A US-president may send a signal.Logical formLearned from39 sentences. Signals may be amplified.Logical formLearned from39 sentences.