context: It is probable that Mary is in the park. We doubt that Gertrude is a sheep. There is little chance that Bernhard is a frog.
hypothesis: It is unlikely that mary is in the park, or Gertrude is a sheep.
valid_hypothesis: We believe that mary is in the park, or Gertrude is a sheep.
invalid_hypothesis: It is unlikely that mary is in the park, or Gertrude is a sheep.
hypothesis_assertion: Mary is in the park, or Gertrude is a sheep.