Laughter can be contagious.Logical formLearned from86 sentences. An outbreak can be constituted-of-or-filled-with laughter.Logical formLearned from85 sentences. Laughter can be mad.Logical formLearned from83 sentences. Laughter can be shared.Logical formLearned from82 sentences. Laughter can be happy.Logical formLearned from81 sentences. Laughter can be spontaneous.Logical formLearned from80 sentences. A person may miss laughter.Logical formLearned from76 sentences. Laughter can be joyous.Logical formLearned from75 sentences. Laughter can be contagious.Logical formLearned from74 sentences. Laughter can be in a voice.Logical formLearned from74 sentences. Peels can be constituted-of-or-filled-with laughter.Logical formLearned from72 sentences. Laughter may undergo an explosion.Logical formLearned from72 sentences. A person may howl with laughter.Logical formLearned from71 sentences. Shouts can be constituted-of-or-filled-with laughter.Logical formLearned from68 sentences. A source can be constituted-of-or-filled-with laughter.Logical formLearned from68 sentences.