A birthday can be true.Logical formLearned from36 sentences. Persons may have a (birthday celebration).Logical formLearned from36 sentences. Birthday can be to a mom.Logical formLearned from36 sentences. Tickets can be for a birthday.Logical formLearned from36 sentences. A night may pertain-to a (birthday party).Logical formLearned from36 sentences. A birthday can be weeks.Logical formLearned from36 sentences. A person may be invited to a (birthday party).Logical formLearned from36 sentences. A male may have a (birthday party).Logical formLearned from36 sentences. A (birthday party) can be for a friend.Logical formLearned from36 sentences. A birthday may pertain-to a star.Logical formLearned from36 sentences. A birthday may pertain-to an elected-representative.Logical formLearned from36 sentences. A scientist may undergo a birthday.Logical formLearned from36 sentences. A birthday may pertain-to a little girl.Logical formLearned from36 sentences. Persons may sing birthday to a male.Logical formLearned from36 sentences. A birthday may pertain-to president.Logical formLearned from36 sentences.