context: A girl in a pink shirt is teaching a young man in a striped sweater how to knit.
hypothesis: It is probably not the case that the girl is teaching her boyfriend how to knit.
valid_hypothesis: It is probably not the case that the girl is teaching her boyfriend how to knit.
invalid_hypothesis: It is certain that the girl is teaching her boyfriend how to knit.
hypothesis_assertion: The girl is teaching her boyfriend how to knit.