A wife may celebrate a birthday.Logical formLearned from31 sentences. Birthday may undergo a singing.Logical formLearned from31 sentences. (Birthday parties) may pertain-to kids.Logical formLearned from31 sentences. A birthday may pertain-to a party.Logical formLearned from30 sentences. Birthdays may pertain-to kids.Logical formLearned from30 sentences. A woman may celebrate a birthday.Logical formLearned from30 sentences. Children can be on birthdays.Logical formLearned from30 sentences. A male may undergo a (birthday party).Logical formLearned from30 sentences. A person may plan a (birthday party).Logical formLearned from30 sentences. A (surprise birthday party) may pertain-to a male.Logical formLearned from30 sentences. A (birthday party) may pertain-to a best friend.Logical formLearned from30 sentences. An occasion can be a birthday.Logical formLearned from30 sentences. A birthday can be cool.Logical formLearned from30 sentences. A birthday may pertain-to cousin.Logical formLearned from30 sentences. A (birthday celebration) can be for a female.Logical formLearned from30 sentences.