context: A group of people walking across the street some carrying large black and red flags.
hypothesis: It is almost certain that some people walking across the street holding large flags are part of a parade.
valid_hypothesis: It is probably not the case that some people walking across the street holding large flags are part of a parade.
invalid_hypothesis: It is almost certain that some people walking across the street holding large flags are part of a parade.
hypothesis_assertion: Some people walking across the street holding large flags are part of a parade.