Anniversaries may pertain-to a date.Logical formLearned from12 sentences. An anniversary may pertain-to a friendship.Logical formLearned from12 sentences. An anniversary may pertain-to (transit bombings).Logical formLearned from12 sentences. An anniversary may pertain-to a service.Logical formLearned from12 sentences. An (anniversary date) can be one-year.Logical formLearned from12 sentences. A series may celebrate an anniversary.Logical formLearned from12 sentences. An anniversary may pertain-to a lab.Logical formLearned from12 sentences. An event may celebrate an anniversary.Logical formLearned from12 sentences. An anniversary may pertain-to (terrorist attacks).Logical formLearned from12 sentences. A year may mark an anniversary of a program.Logical formLearned from12 sentences. An anniversary may pertain-to a confederation.Logical formLearned from12 sentences. An anniversary may approach.Logical formLearned from12 sentences. An anniversary can be unofficial.Logical formLearned from12 sentences. A (10th anniversary) may pertain-to a male.Logical formLearned from12 sentences. An (anniversary weekend) may pertain-to a person.Logical formLearned from12 sentences.