context: It is improbable that Greg is a frog. It is highly likely that John grabbed the apple. It is certain that Mary went to the garden.
hypothesis: It is highly likely that either Greg is a frog, or Mary went to the garden.
valid_hypothesis: It is highly likely that either Greg is a frog, or Mary went to the garden.
invalid_hypothesis: It is impossible that either Greg is a frog, or Mary went to the garden.
hypothesis_assertion: Either Greg is a frog, or Mary went to the garden.