A widow may check.Logical formLearned from4 sentences. Some planes may check.Logical formLearned from3 sentences. Authorities may check on details.Logical formLearned from3 sentences. Criminal records may be checked.Logical formLearned from3 sentences. A democracy may check power of a president.Logical formLearned from3 sentences. Patients may check into (emergency rooms).Logical formLearned from3 sentences. A male may check machines.Logical formLearned from3 sentences. Astronauts may check a tightness.Logical formLearned from3 sentences. Numbers of persons may be checked.Logical formLearned from3 sentences. A male may check a man.Logical formLearned from3 sentences. Samples may be checked.Logical formLearned from3 sentences. Some aircraft may be checked.Logical formLearned from3 sentences. (Quarantine officers) may check passengers.Logical formLearned from3 sentences. A number of a trapped may be checked.Logical formLearned from3 sentences. Dealers may check.Logical formLearned from3 sentences.