context: People are riding bicycles in the street, and they are all wearing helmets.
hypothesis: We doubt that a group of friends are biking through a street, all wearing their helmets
valid_hypothesis: It is likely that a group of friends are biking through a street, all wearing their helmets
invalid_hypothesis: We doubt that a group of friends are biking through a street, all wearing their helmets
hypothesis_assertion: A group of friends are biking through a street, all wearing their helmets