Birthdays may pertain-to persons.Logical formLearned from1 063 sentences. An occasion may pertain-to a birthday.Logical formLearned from1 050 sentences. A female may celebrate a birthday.Logical formLearned from1 047 sentences. A birthday may pertain-to a US-president.Logical formLearned from1 025 sentences. An eve may pertain-to a birthday.Logical formLearned from990 sentences. A birthday may pertain-to a friend.Logical formLearned from952 sentences. A birthday may pertain-to a sister.Logical formLearned from925 sentences. Birthdays may pertain-to a person.Logical formLearned from905 sentences. A birthday may pertain-to a brother.Logical formLearned from818 sentences. A birthday may pertain-to a father.Logical formLearned from797 sentences. A person may want for a birthday.Logical formLearned from792 sentences. A birthday may pertain-to a friend.Logical formLearned from732 sentences. A (birthday present) may pertain-to a female.Logical formLearned from732 sentences. A cake can be for a birthday.Logical formLearned from722 sentences. A (birthday present) may pertain-to a male.Logical formLearned from674 sentences.