context: It is impossible that John went to the garden. Chances are about even that Emily is a sheep. Chances are about even that Lily is a frog.
hypothesis: There is almost no chance that either John went to the garden, or Emily is a sheep.
valid_hypothesis: Chances are about even that either John went to the garden, or Emily is a sheep.
invalid_hypothesis: There is almost no chance that either John went to the garden, or Emily is a sheep.
hypothesis_assertion: Either John went to the garden, or Emily is a sheep.