context: It is impossible that Jeff moved to the office. Chances are slight that Brian is green. It is highly unlikely that Bernhard is yellow. It is highly unlikely that if either Bernhard is yellow, or Brian is green, then Julius is a frog. There is a better than even chance that if Jeff moved to the office, and Bernhard is yellow, then Greg is a lion. Chances are about even that if Brian is green, or Bernhard is yellow, then Fred dropped the apple.
hypothesis: It is highly unlikely that greg is a lion, or Bernhard is yellow.
valid_hypothesis: It is highly unlikely that greg is a lion, or Bernhard is yellow.
invalid_hypothesis: It is probably the case that greg is a lion, or Bernhard is yellow.
hypothesis_assertion: Greg is a lion, or Bernhard is yellow.