context: It is almost certain that Fred moved to the office. We doubt that Brian is green. It is probably the case that Gertrude is a mouse. We doubt that if Fred moved to the office, and Gertrude is a mouse, then Emily is a cat. There is almost no chance that if either Brian is green, or Gertrude is a mouse, then Bill dropped the milk. It is unlikely that if either Brian is green, or Gertrude is a mouse, then Bernhard is a frog.
hypothesis: It is probably not the case that emily is a cat, or Brian is green.
valid_hypothesis: It is probably not the case that emily is a cat, or Brian is green.
invalid_hypothesis: It is certain that emily is a cat, or Brian is green.
hypothesis_assertion: Emily is a cat, or Brian is green.