context: It is probably not the case that Lily is green. It is likely that Brian is a frog. It is improbable that Greg is a rhino. It is probably not the case that if either Brian is a frog, or Greg is a rhino, then Yann is thirsty. It is unlikely that if Lily is green, and Brian is a frog, then John went to the hallway. There is little chance that if either Brian is a frog, or Lily is green, then Mary left the apple.
hypothesis: We doubt that brian is a frog, and Lily is green.
valid_hypothesis: We doubt that brian is a frog, and Lily is green.
invalid_hypothesis: It is probable that brian is a frog, and Lily is green.
hypothesis_assertion: Brian is a frog, and Lily is green.