Ulcers may be infected with a bug.Logical formLearned from6 sentences. Some persons may be infected with tb.Logical formLearned from6 sentences. A virus may infect chickens.Logical formLearned from6 sentences. Viruses may infect cells.Logical formLearned from6 sentences. A server may be infected.Logical formLearned from6 sentences. An individual may be infected with agent.Logical formLearned from6 sentences. A person may be infected with sars.Logical formLearned from6 sentences. Monkeys may be infected with a virus.Logical formLearned from6 sentences. Bacteria may infect persons.Logical formLearned from6 sentences. A husband may infect a female.Logical formLearned from6 sentences. A wound may be infected.Logical formLearned from6 sentences. A person may be infected with tuberculosis.Logical formLearned from6 sentences. A worm may infect a computer.Logical formLearned from6 sentences. A virus may infect a liver.Logical formLearned from6 sentences. Poultry may infect humans.Logical formLearned from6 sentences.