Troops may keep_up an assault.Logical formLearned from4 sentences. A government may keep_up statements.Logical formLearned from4 sentences. A government may keep_up a stream of statements.Logical formLearned from4 sentences. A government may keep_up a war of words.Logical formLearned from4 sentences. Exports may keep_up with imports.Logical formLearned from4 sentences. A country may keep_up pressure on a world-city.Logical formLearned from4 sentences. A male may keep_up a trend.Logical formLearned from4 sentences. Output may keep_up with demand.Logical formLearned from4 sentences. (Army spokesman) may keep_up pressure.Logical formLearned from4 sentences. Reports may keep_up a trend of data.Logical formLearned from4 sentences. A country may keep_up investment.Logical formLearned from4 sentences. Israeli troops may keep_up an assault.Logical formLearned from4 sentences. A military may keep_up a push.Logical formLearned from4 sentences. Troops may keep_up a drive.Logical formLearned from4 sentences. A female may keep_up pressure on (league leaders).Logical formLearned from4 sentences.