Laughter can be a signal.Logical formLearned from7 sentences. Laughter can be distinctive.Logical formLearned from7 sentences. Laughter may connote an idea.Logical formLearned from7 sentences. Control may pertain-to laughter.Logical formLearned from7 sentences. A person may cry tears of laughter.Logical formLearned from7 sentences. A male may say to an outburst of laughter.Logical formLearned from7 sentences. Laughter can be music.Logical formLearned from7 sentences. A male may shriek with laughter.Logical formLearned from7 sentences. Laughter can be astonished.Logical formLearned from7 sentences. Laughter can be light.Logical formLearned from7 sentences. Laughter may undergo an expression.Logical formLearned from7 sentences. Laughter can be real.Logical formLearned from7 sentences. A person may let_out laughter.Logical formLearned from7 sentences. Laughter can be odd.Logical formLearned from7 sentences. Eyes may twinkle with laughter.Logical formLearned from7 sentences.