context: A person wearing a red shirt is falling off a white surfboard.
hypothesis: There is a better than even chance that a surfer is being flung in to the waves after hiting a large crest.
valid_hypothesis: There is a better than even chance that a surfer is being flung in to the waves after hiting a large crest.
invalid_hypothesis: There is almost no chance that a surfer is being flung in to the waves after hiting a large crest.
hypothesis_assertion: A surfer is being flung in to the waves after hiting a large crest.