context: A group of people playing guitars and singing.
hypothesis: There is almost no chance that the group is a folk music band practicing before their first gig.
valid_hypothesis: There is almost no chance that the group is a folk music band practicing before their first gig.
invalid_hypothesis: We believe that the group is a folk music band practicing before their first gig.
hypothesis_assertion: The group is a folk music band practicing before their first gig.