A signal may be received.Logical formLearned from135 sentences. A decision can be a signal.Logical formLearned from134 sentences. A signal can be serious.Logical formLearned from132 sentences. A signal can be infrared.Logical formLearned from132 sentences. A signal can be secret.Logical formLearned from131 sentences. A male may give a signal.Logical formLearned from131 sentences. Signals can be from a world-city.Logical formLearned from129 sentences. A quality may pertain-to a signal.Logical formLearned from128 sentences. Signals can be audible.Logical formLearned from127 sentences. A signal can be to an international community.Logical formLearned from127 sentences. A signal can be decent.Logical formLearned from127 sentences. A signal may be given.Logical formLearned from126 sentences. A fact can be a signal.Logical formLearned from125 sentences. Signals can be from a brain.Logical formLearned from124 sentences. (Ntsc signals) can be from antenna.Logical formLearned from124 sentences.