context: Chances are slight that Mary went to the hallway. We doubt that Julius is a lion. We believe that Lily is a frog. There is almost no chance that if either Julius is a lion, or Mary went to the hallway, then Emily is a mouse. We doubt that if either Julius is a lion, or Lily is a frog, then Greg is a lion. We doubt that if either Mary went to the hallway, or Lily is a frog, then Sandra grabbed the milk.
hypothesis: It is likely that lily is a frog, and Sandra grabbed the milk.
valid_hypothesis: Chances are slight that lily is a frog, and Sandra grabbed the milk.
invalid_hypothesis: It is likely that lily is a frog, and Sandra grabbed the milk.
hypothesis_assertion: Lily is a frog, and Sandra grabbed the milk.