context: A man wearing a suit with a name tag stands reading in front of a microphone as a screen behind him displays a presentation.
hypothesis: It is probably not the case that a man gives a presentation to a big crowd
valid_hypothesis: It is probably not the case that a man gives a presentation to a big crowd
invalid_hypothesis: It is probably the case that a man gives a presentation to a big crowd
hypothesis_assertion: a man gives a presentation to a big crowd