context: It is highly unlikely that Greg is a rhino. There is little chance that Sandra took the football. Chances are slight that Bernhard is a frog.
hypothesis: There is a very good chance that greg is a rhino, or Bernhard is a frog.
valid_hypothesis: Chances are slight that greg is a rhino, or Bernhard is a frog.
invalid_hypothesis: There is a very good chance that greg is a rhino, or Bernhard is a frog.
hypothesis_assertion: Greg is a rhino, or Bernhard is a frog.