A gift can be for birthdays.Logical formLearned from23 sentences. Persons may celebrate some birthday.Logical formLearned from23 sentences. A celebration may mark a birthday.Logical formLearned from23 sentences. A political-leader may celebrate a birthday.Logical formLearned from23 sentences. A US-president can be for birthday.Logical formLearned from23 sentences. A (birthday bash) may pertain-to a country.Logical formLearned from23 sentences. A world-city may celebrate birthday.Logical formLearned from23 sentences. Advance may pertain-to a birthday.Logical formLearned from23 sentences. A female may make for a birthday.Logical formLearned from23 sentences. An artist may undergo a birthday.Logical formLearned from23 sentences. A female may invite a male to a (birthday party).Logical formLearned from22 sentences. A school may celebrate a birthday.Logical formLearned from22 sentences. A birthday may pertain-to a school.Logical formLearned from22 sentences. A person may die on a birthday.Logical formLearned from22 sentences. A birthday may pertain-to wife.Logical formLearned from22 sentences.