Rates can be constituted-of-or-filled-with flu.Logical formLearned from12 sentences. A country may confirm (bird flu outbreak).Logical formLearned from12 sentences. A (bird flu virus) may mutate into a form of a virus.Logical formLearned from12 sentences. (Cat flu) may relapse.Logical formLearned from12 sentences. Flu may begin.Logical formLearned from12 sentences. (Bird flu deaths) may pertain-to the world.Logical formLearned from12 sentences. An universal (flu vaccine) may mean an end to a jab.Logical formLearned from12 sentences. An (air purifier) may eliminate some percent of a strain of (bird flu).Logical formLearned from12 sentences. (Flu shots) may work.Logical formLearned from12 sentences. Victims can be constituted-of-or-filled-with some (flu virus).Logical formLearned from12 sentences. Survivors can be constituted-of-or-filled-with flu.Logical formLearned from12 sentences. A (testing machine) can be for (bird flu).Logical formLearned from12 sentences. A person can be ill with a flu.Logical formLearned from12 sentences. (Flu shots) may pertain-to a country.Logical formLearned from12 sentences. Fears can be constituted-of-or-filled-with some (horse flu outbreak).Logical formLearned from12 sentences.