context: A man with a striped black and white shirt and a helmet cleans wooden floor while another one helps him on the background.
hypothesis: We believe that a man in a shirt and helmet is cleaning up as spill.
valid_hypothesis: We believe that a man in a shirt and helmet is cleaning up as spill.
invalid_hypothesis: It is impossible that a man in a shirt and helmet is cleaning up as spill.
hypothesis_assertion: A man in a shirt and helmet is cleaning up as spill.