Think of it this way:
- Bison from Buffalo, New York, who are intimidated by other bison in their community also happen to intimidate other bison in their community.
- THE buffalo FROM Buffalo WHO ARE buffaloed BY buffalo FROM Buffalo ALSO buffalo THE buffalo FROM Buffalo.
"Buffalo buffalo (main clause Subject) [which the] Buffalo buffalo (subordinate clause Direct Object) buffalo [subordinate clause Verb] buffalo [main clause Verb] Buffalo buffalo [main clause Direct Object]."
Thank you, Wikipedia! I know some people are skeptical about whatever they see on Wikipedia, but I still like it.