(Bird flu) can be contagious.Logical formLearned from13 sentences. (Bird flu cases) can be reported.Logical formLearned from13 sentences. A flu may pertain-to a country.Logical formLearned from13 sentences. Risk can be for flu.Logical formLearned from13 sentences. A meeting can be on flu.Logical formLearned from13 sentences. A northern hemisphere may enter a (flu season).Logical formLearned from13 sentences. A person may die of flu.Logical formLearned from13 sentences. A tourist may fall with case of flu.Logical formLearned from13 sentences. A name can be for flu.Logical formLearned from13 sentences. Some (flu drugs) can be effective against a strain.Logical formLearned from13 sentences. A male may miss a game with a flu.Logical formLearned from13 sentences. A hot spot can be for a (bird flu pandemic).Logical formLearned from13 sentences. (Bird flu) can be difficult.Logical formLearned from13 sentences. A (flu outbreak) can be equine.Logical formLearned from13 sentences. (Flu samples) can be regular.Logical formLearned from13 sentences.