context: There is a better than even chance that Brian is a frog. It is impossible that Mary is in the hallway. There is little chance that Greg is a lion.
hypothesis: It is likely that brian is a frog, and Mary is in the hallway.
valid_hypothesis: It is impossible that brian is a frog, and Mary is in the hallway.
invalid_hypothesis: It is likely that brian is a frog, and Mary is in the hallway.
hypothesis_assertion: Brian is a frog, and Mary is in the hallway.