An anniversary may pertain-to a championship.Logical formLearned from64 sentences. An anniversary can be an opportunity.Logical formLearned from64 sentences. An anniversary may pertain-to an (air disaster).Logical formLearned from64 sentences. A country may mark an anniversary of a founding.Logical formLearned from63 sentences. An anniversary may pertain-to a campaign.Logical formLearned from63 sentences. A month may mark an anniversary.Logical formLearned from63 sentences. An (anniversary present) may pertain-to a person.Logical formLearned from63 sentences. An anniversary may pertain-to a US-city.Logical formLearned from63 sentences. An anniversary may pertain-to a website.Logical formLearned from63 sentences. An anniversary may pertain-to a hurricane.Logical formLearned from63 sentences. An anniversary may pertain-to an airlift.Logical formLearned from63 sentences. A club may celebrate an anniversary.Logical formLearned from63 sentences. An anniversary may pertain-to an escape.Logical formLearned from63 sentences. An anniversary may pertain-to a first (moon landing).Logical formLearned from62 sentences. An anniversary may pertain-to an album.Logical formLearned from62 sentences.