context: There is a very good chance that Brian is a lion. It is improbable that Daniel is in the garden. There is almost no chance that Mary went to the garden.
hypothesis: It is improbable that either Daniel is in the garden, or Mary went to the garden.
valid_hypothesis: It is improbable that either Daniel is in the garden, or Mary went to the garden.
invalid_hypothesis: It is likely that either Daniel is in the garden, or Mary went to the garden.
hypothesis_assertion: Either Daniel is in the garden, or Mary went to the garden.