context: It is certain that John is in the hallway. It is almost certain that Greg is a frog. There is little chance that Mary moved to the garden. There is a better than even chance that if John is in the hallway, or Greg is a frog, then Jeff went to the kitchen. We believe that if either John is in the hallway, or Greg is a frog, then Emily is a cat. There is almost no chance that if Mary moved to the garden, and John is in the hallway, then Brian is a rhino.
hypothesis: There is a better than even chance that john is in the hallway, and Jeff went to the kitchen.
valid_hypothesis: There is a better than even chance that john is in the hallway, and Jeff went to the kitchen.
invalid_hypothesis: Chances are slight that john is in the hallway, and Jeff went to the kitchen.
hypothesis_assertion: John is in the hallway, and Jeff went to the kitchen.