A problem may infect shuttles.Logical formLearned from2 sentences. Victims may be infected by a patient.Logical formLearned from2 sentences. A female may infect a lot of persons.Logical formLearned from2 sentences. A (flight steward) may infect persons.Logical formLearned from2 sentences. Persons may be infected with (respiratory syndrome).Logical formLearned from2 sentences. A professor may infect persons.Logical formLearned from2 sentences. Mothers may be infected by a disease.Logical formLearned from2 sentences. Seals may be infected.Logical formLearned from2 sentences. Farms may be believed be infected with a virus.Logical formLearned from2 sentences. Scientists may infect (research monkeys) with agents.Logical formLearned from2 sentences. A woman may be infected on a flight.Logical formLearned from2 sentences. A woman may be infected in a flight.Logical formLearned from2 sentences. Underprivileged children may be infected with a virus.Logical formLearned from2 sentences. A man may infect some persons.Logical formLearned from2 sentences. Terrorists may infect a (food supply).Logical formLearned from2 sentences.