An implementation may iterate over a collection.Logical formLearned from26 sentences. A collection may include digital reproductions.Logical formLearned from26 sentences. Members may pertain-to a collection.Logical formLearned from26 sentences. A study may pertain-to a collection.Logical formLearned from26 sentences. A collection may pertain-to a friend.Logical formLearned from26 sentences. Volumes may pertain-to a collection.Logical formLearned from26 sentences. Plans may undergo a collection.Logical formLearned from26 sentences. A collection may be donated.Logical formLearned from26 sentences. Lullabies may undergo a collection.Logical formLearned from26 sentences. (Blood vessels) may undergo a collection.Logical formLearned from26 sentences. Collections may undergo collections.Logical formLearned from26 sentences. A collection can be on a floor.Logical formLearned from26 sentences. Constraints may undergo a collection.Logical formLearned from26 sentences. A (collection development) may pertain-to persons.Logical formLearned from26 sentences. A (watch collection) may pertain-to a person.Logical formLearned from26 sentences.