An employee may be infected by a letter.Logical formLearned from6 sentences. A letter may infect an employee.Logical formLearned from6 sentences. An anthrax may infect an assistant.Logical formLearned from6 sentences. Disease may infect animals.Logical formLearned from6 sentences. Some computers may be infected by an e-mail.Logical formLearned from6 sentences. An outbreak of a fever may infect some persons.Logical formLearned from6 sentences. A virus may infect (shrimp farms).Logical formLearned from6 sentences. A person may be infected with tb.Logical formLearned from6 sentences. Husbands may be infected.Logical formLearned from6 sentences. Some patients may be infected with a disease.Logical formLearned from6 sentences. A greek (debt crisis) may infect economies.Logical formLearned from6 sentences. Corruption may infect an aspect of life.Logical formLearned from6 sentences. A male may be infected with flu.Logical formLearned from6 sentences. A disease may infect some worldwides.Logical formLearned from6 sentences. A network may infect computers.Logical formLearned from6 sentences.