One more stupid question: if not allowed to enter, will the original plane return to the mainland? Who will pay for the ticket money ?

I think it should be self-funded! No government will pay for people they think can't enter!

Please translate the above paragraph into English and return it in JSON format like: {

There is a case I know, but it's in Toronto. Upon arrival at night, a problem was discovered and entry was denied. That night, the person was placed in a detention area, which is essentially a temporary detention location with rooms for sleeping. The next day, the person found a local friend to help arrange a plane ticket to fly back. The cost of the ticket was over ten thousand dollars for economy class, and the person had to cover the expense. A sad story.