A flu can be positive.Logical formLearned from14 sentences. A (bird flu death toll) can be after a country.Logical formLearned from14 sentences. A country may have a (bird flu death toll).Logical formLearned from14 sentences. (Bird flu) can be by comming into contact.Logical formLearned from14 sentences. An outbreak can be constituted-of-or-filled-with (equine flu).Logical formLearned from14 sentences. A fight can be against avian flu.Logical formLearned from14 sentences. A (bird flu epidemic) may undergo an event.Logical formLearned from14 sentences. (Bird flu) can be on a farm.Logical formLearned from14 sentences. A struggle can be against a (flu pandemic).Logical formLearned from14 sentences. Fatalities can be from (bird flu).Logical formLearned from14 sentences. A (bird flu epidemic) may pertain-to a country.Logical formLearned from14 sentences. Fatalities can be from (bird flu).Logical formLearned from14 sentences. A person may have (bird flu).Logical formLearned from14 sentences. (Bird flu deaths) may pertain-to a country.Logical formLearned from14 sentences. A flu may spread between persons.Logical formLearned from14 sentences.