Some students may be checked for symptoms.Logical formLearned from7 sentences. Researcher may be checked.Logical formLearned from7 sentences. Officials may check credentials.Logical formLearned from7 sentences. Security may check a plane.Logical formLearned from7 sentences. A (blood sample) may be checked in a lab.Logical formLearned from7 sentences. Persons may check a box on a country.Logical formLearned from7 sentences. Police may check (id cards).Logical formLearned from7 sentences. A convoy may check a sighting of a priest.Logical formLearned from7 sentences. A body may check on security.Logical formLearned from7 sentences. Investigators may check reports.Logical formLearned from7 sentences. Persons may check with sources.Logical formLearned from7 sentences. Authorities may check information.Logical formLearned from7 sentences. A world-city may check a cow.Logical formLearned from7 sentences. Violence may be checked.Logical formLearned from7 sentences. Fans may be checked at entrances.Logical formLearned from7 sentences.