Copies may pertain-to (birth certificates).Logical formLearned from49 sentences. Anniversaries may pertain-to a birth.Logical formLearned from49 sentences. A birth may be registered.Logical formLearned from49 sentences. Galaxies may undergo a birth.Logical formLearned from49 sentences. A search can be for a (birth mother).Logical formLearned from49 sentences. A century may undergo a birth.Logical formLearned from48 sentences. (Birth intervals) can be short.Logical formLearned from48 sentences. A political-leader may give birth to a man.Logical formLearned from48 sentences. An universe may undergo a birth.Logical formLearned from48 sentences. A father may die before a birth.Logical formLearned from48 sentences. A mother may give birth.Logical formLearned from48 sentences. (Birth defects) may occur.Logical formLearned from48 sentences. A (birth certificate) can be a fake.Logical formLearned from48 sentences. A (birth rate) can be high.Logical formLearned from47 sentences. A (birth weight) can be high.Logical formLearned from47 sentences.