context: Casually dressed young males and females are sitting and laying on a grassy area with bicycles and other personal belongings reading on a sunny day.
hypothesis: Chances are about even that a bunch of people are hanging out in the park in the middle of classes.
valid_hypothesis: Chances are about even that a bunch of people are hanging out in the park in the middle of classes.
invalid_hypothesis: It is certain that a bunch of people are hanging out in the park in the middle of classes.
hypothesis_assertion: A bunch of people are hanging out in the park in the middle of classes.