context: There is almost no chance that Lily is green. There is almost no chance that Mary went to the office. It is improbable that Brian is yellow.
hypothesis: It is impossible that brian is yellow, and Mary went to the office.
valid_hypothesis: It is impossible that brian is yellow, and Mary went to the office.
invalid_hypothesis: It is probably the case that brian is yellow, and Mary went to the office.
hypothesis_assertion: Brian is yellow, and Mary went to the office.