(Lab sample) may be checked for virus.Logical formLearned from5 sentences. Backgrounds may be checked.Logical formLearned from5 sentences. A brother may check fields of fire.Logical formLearned from5 sentences. Races may check baggage.Logical formLearned from5 sentences. A vet may check.Logical formLearned from5 sentences. A man may check tickets.Logical formLearned from5 sentences. Someone may check a (credit report).Logical formLearned from5 sentences. Persons may check a lead.Logical formLearned from5 sentences. A service may check.Logical formLearned from5 sentences. Someone may check for a bomb.Logical formLearned from5 sentences. Employees may be checked.Logical formLearned from5 sentences. Persons may check some leads.Logical formLearned from5 sentences. Parents may check with local newspaper.Logical formLearned from5 sentences. Parents may check with museums.Logical formLearned from5 sentences. A male may check a passport.Logical formLearned from5 sentences.