A chairman of (joint chiefs) of staff may vow that something-is-the-case.Logical formLearned from4 sentences. A wing may vow revenge.Logical formLearned from4 sentences. A US-president may vow during a speech.Logical formLearned from4 sentences. Hardliners may vow a compromise.Logical formLearned from4 sentences. Ministers may vow support.Logical formLearned from4 sentences. A side may vow revenge.Logical formLearned from4 sentences. Officials may vow cooperation.Logical formLearned from4 sentences. A US-president may vow an encounter.Logical formLearned from4 sentences. Hamas may vow reprisals.Logical formLearned from4 sentences. A political-leader may vow an overhaul of an administration.Logical formLearned from4 sentences. Unionists may vow a struggle.Logical formLearned from4 sentences. A British government may vow that something-is-the-case.Logical formLearned from4 sentences. Some abode-seekers may vow in days.Logical formLearned from4 sentences. A declaration may vow that something-is-the-case.Logical formLearned from4 sentences. A country may vow moral support.Logical formLearned from4 sentences.