context: It is impossible that Julius is a lion. It is probably the case that Emily is a cat. Chances are slight that Fred went to the kitchen.
hypothesis: It is impossible that either Emily is a cat, or Fred went to the kitchen.
valid_hypothesis: It is probable that either Emily is a cat, or Fred went to the kitchen.
invalid_hypothesis: It is impossible that either Emily is a cat, or Fred went to the kitchen.
hypothesis_assertion: Either Emily is a cat, or Fred went to the kitchen.