I want to know the answer to the following question:
How can a champion lose a championship?
All the background I'm provided with is that "In championship matches, this means that, unlike one-on-one matches (where the champion can simply disqualify themselves or get themselves counted out to retain the title via the "champion's advantag"), the champion does not have to be pinned or involved in the decision to lose the championship.". Is that enough to answer the question?
Answer: yes