Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
Q: I was trying to understand how the main computer at the end of the 3rd part of the Matrix trilogy could kill agent Smith, at the point of programming ( both agent Smith and Neo were programs in that space), when Agent Smith turned Neo into his copy. How did the main computer realize that? I mean, there were totally a lot of copies of agent Smith, and it could be links that were linking to the main object (real Agent Smith). Or maybe they were independent copies? They absolutely weren't pointers, because insurance from 1 example hadn't influence on the original. So how did the computer accomplish this?
A:
How did they kill Agent Smith?