Hundreds of (drug dealers) may keep_up a drumbeat of activity.Logical formLearned from4 sentences. Someone may keep_up with manufacturing.Logical formLearned from4 sentences. A time may keep_up with a pace of change.Logical formLearned from4 sentences. Students may keep_up with classmates.Logical formLearned from4 sentences. Difficulty may keep_up with demands of technology.Logical formLearned from4 sentences. A male may keep_up profits.Logical formLearned from4 sentences. Somebody may keep_up with changes.Logical formLearned from4 sentences. A female may keep_up a guard.Logical formLearned from4 sentences. Managers may keep_up with technology.Logical formLearned from4 sentences. A female may keep_up a liaison.Logical formLearned from4 sentences. Persons may keep_up with pros.Logical formLearned from4 sentences. A message may keep_up a head.Logical formLearned from4 sentences. A person may keep_up a string of a syll.Logical formLearned from4 sentences. A philosopher may keep_up a correspondence.Logical formLearned from4 sentences. Workers may keep_up with a rate of inflation.Logical formLearned from4 sentences.