Intuitively, all the other sixteen apostles (perhaps excluding Nagisa Kaoru) are a kind of entity
Predicates are unsaturated, hence the human completion plan. The Human Completion Project (and its various variants and various parallel mechanisms) is conceptually a process of becoming a truth
Two remaining questions: (1) What is the semantic type of Nagisa Kaoru? Is he an entity? (2) How to explain the semantic principle of AT Field? This question is equally important because a single person seems to be both an entity and a predicate (completion schemes fundamentally operate on humans, not individual people. But this explanation alone does not fully solve the problem ). If the concept of AT Field is not introduced, then a person (eg Ikari Shinji) and an apostle (eg Nagisa Kaoru) may be indistinguishable.
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