Birds may begin.Logical formLearned from72 sentences. Persons may have birds.Logical formLearned from72 sentences. A bird can be colorful.Logical formLearned from72 sentences. Birds can be in a continent.Logical formLearned from72 sentences. (Bird counts) may pertain-to a religious-holiday.Logical formLearned from72 sentences. A bird can be plump.Logical formLearned from72 sentences. A pandemic can be constituted-of-or-filled-with (bird flu).Logical formLearned from72 sentences. A (bird flu crisis) may pertain-to a continent.Logical formLearned from72 sentences. Sunbirds can be passerine birds.Logical formLearned from71 sentences. A person can be an early bird.Logical formLearned from71 sentences. Bird may be written/wrote by himself.Logical formLearned from71 sentences. A bird can be primitive.Logical formLearned from71 sentences. Birds may undergo a culling.Logical formLearned from71 sentences. A vaccine can be against (bird flu).Logical formLearned from71 sentences. Hundreds can be constituted-of-or-filled-with (bird species).Logical formLearned from70 sentences.