context: It is probably not the case that Mary went to the hallway. It is improbable that Greg is a frog. It is probably the case that Fred discarded the milk. It is certain that if Greg is a frog, and Fred discarded the milk, then Bernhard is a lion. It is probable that if either Greg is a frog, or Mary went to the hallway, then Julius is a rhino. It is probable that if Fred discarded the milk, and Mary went to the hallway, then Winona is a cat.
hypothesis: It is probably not the case that mary went to the hallway, or Greg is a frog.
valid_hypothesis: It is probably not the case that mary went to the hallway, or Greg is a frog.
invalid_hypothesis: It is certain that mary went to the hallway, or Greg is a frog.
hypothesis_assertion: Mary went to the hallway, or Greg is a frog.