A (birthday party) may pertain-to a weekday.Logical formLearned from20 sentences. A person can be (birthday boy).Logical formLearned from20 sentences. Everyone may send (birthday wishes).Logical formLearned from20 sentences. A birthday can be quiet.Logical formLearned from20 sentences. A birthday can be a 29th.Logical formLearned from20 sentences. Birthdays can be a time.Logical formLearned from20 sentences. (Birthday party decorations) may pertain-to a person.Logical formLearned from20 sentences. A birthday can be perfect.Logical formLearned from20 sentences. Today can be a birthday of a female.Logical formLearned from20 sentences. A grandma can be for a birthday.Logical formLearned from20 sentences. A male may say birthday.Logical formLearned from20 sentences. Persons may have a (birthday dinner).Logical formLearned from20 sentences. A person may miss a birthday.Logical formLearned from20 sentences. Persons can be on a birthday.Logical formLearned from20 sentences. A (birthday party) may pertain-to kids.Logical formLearned from20 sentences.