premise: A man with a large mustache watches the barber conduct his work through the mirror that faces him. hypothesis: A man is getting his face shaved for his party.
neutral: Just because a man watches a barber work does not mean he is getting his face shaved.  The man also does not have to be having a party.|neutral: You can not infer it's for his party.|neutral: Just because watches the barber does not mean getting his face shaved.