context: We doubt that Fred dropped the apple. It is likely that Greg is a rhino. It is probable that Mary went to the garden.
hypothesis: It is highly likely that greg is a rhino, or Mary went to the garden.
valid_hypothesis: It is highly likely that greg is a rhino, or Mary went to the garden.
invalid_hypothesis: It is improbable that greg is a rhino, or Mary went to the garden.
hypothesis_assertion: Greg is a rhino, or Mary went to the garden.