Militant groups may vow (suicide attacks).Logical formLearned from7 sentences. A US-president may vow during a presidential campaign.Logical formLearned from7 sentences. A country may vow defiance.Logical formLearned from7 sentences. Prime minister may vow that something-is-the-case.Logical formLearned from7 sentences. Chief may vow that something-is-the-case.Logical formLearned from7 sentences. A person may vow to American persons that something-is-the-case.Logical formLearned from7 sentences. A world-city may vow reprisals.Logical formLearned from7 sentences. A governor may vow a let-up.Logical formLearned from7 sentences. A person may vow a let-up.Logical formLearned from7 sentences. Militant groups may vow revenge.Logical formLearned from7 sentences. A country may vow efforts.Logical formLearned from6 sentences. A movement may vow that something-is-the-case.Logical formLearned from6 sentences. A secretary may vow that something-is-the-case.Logical formLearned from6 sentences. A wife may vow that something-is-the-case.Logical formLearned from6 sentences. A male may vow a vow.Logical formLearned from6 sentences.