premise: Bad Weather<br>The weatherman was told that he was going to be fired. This made him very angry. During the weather report on the news he lied. The weatherman said it would snow in July. Many angry viewers called into the station.
hypothesis: The weatherman enjoyed playing in the snow.
reason: While it seems unlikely that a grown adult would enjoy playing in the snow, nothing in the text definitively proves or disproves this, so we simply don't know for sure. It's difficult perhaps because the text contains "snow" and "angry" in close proximity to each other.