Air may mutter.Logical formLearned from2 sentences. A male may mutter to some companions.Logical formLearned from2 sentences. A male may mutter through a face.Logical formLearned from2 sentences. A waitress may mutter under a breath.Logical formLearned from2 sentences. A male may mutter about children.Logical formLearned from2 sentences. Gamblers may mutter to themselves.Logical formLearned from2 sentences. Other persons may mutter bargains.Logical formLearned from2 sentences. A gentleman may mutter.Logical formLearned from2 sentences. A (meeting room) may mutter about (cathode rays).Logical formLearned from2 sentences. A male may mutter agreement.Logical formLearned from2 sentences. A daughter may mutter under a breath.Logical formLearned from2 sentences. A person may mutter in a back.Logical formLearned from2 sentences. A person may mutter at a system.Logical formLearned from2 sentences. A command may be muttered at a system.Logical formLearned from2 sentences. A male may mutter in an altered tone.Logical formLearned from2 sentences.