context: A man with a large mustache watches the barber conduct his work through the mirror that faces him.
hypothesis: There is almost no chance that a man is getting his face shaved for his party.
valid_hypothesis: There is almost no chance that a man is getting his face shaved for his party.
invalid_hypothesis: It is highly likely that a man is getting his face shaved for his party.
hypothesis_assertion: A man is getting his face shaved for his party.