A (birthday month) may pertain-to persons.Logical formLearned from18 sentences. A (birthday present) can be for a person.Logical formLearned from18 sentences. A birthday may be listed as a female.Logical formLearned from18 sentences. A (birthday present) may pertain-to a brother.Logical formLearned from18 sentences. An one may celebrate a birthday.Logical formLearned from18 sentences. A (birthday party) can be fabulous.Logical formLearned from18 sentences. A person may get as a (birthday present).Logical formLearned from18 sentences. A birthday may pertain-to a (baby sister).Logical formLearned from18 sentences. Birthdays may pertain-to a company.Logical formLearned from18 sentences. A birthday can be celebrated.Logical formLearned from18 sentences. A gift can be for a birthday.Logical formLearned from18 sentences. A person may forget a birthday.Logical formLearned from18 sentences. Figures may undergo a birthday.Logical formLearned from18 sentences. A weekday may celebrate a birthday of figures.Logical formLearned from18 sentences. (Birthday greetings) may pertain-to a female.Logical formLearned from18 sentences.