A death can be from (bird flu).Logical formLearned from129 sentences. A person may come_down with a flu.Logical formLearned from128 sentences. A person may catch a flu.Logical formLearned from127 sentences. Symptoms can be constituted-of-or-filled-with flu.Logical formLearned from126 sentences. A (flu pandemic) can be global.Logical formLearned from126 sentences. (Bird flu) can be in poultry.Logical formLearned from122 sentences. Cases may pertain-to a (flu virus).Logical formLearned from121 sentences. (Bird flu) can be in humans.Logical formLearned from121 sentences. A country may confirm a case of flu.Logical formLearned from121 sentences. A strain may pertain-to a (bird flu).Logical formLearned from118 sentences. A flu can be nasty.Logical formLearned from118 sentences. A (bird flu virus) may mutate into a form.Logical formLearned from117 sentences. (Flu cases) can be confirmed.Logical formLearned from114 sentences. A spread may pertain-to a (bird flu virus).Logical formLearned from114 sentences. (Bird flu) can be in a continent.Logical formLearned from113 sentences.