context: It is certain that Bill moved to the office. There is almost no chance that Julius is a rhino. It is certain that John put down the milk. It is highly likely that if John put down the milk, and Julius is a rhino, then Mary picked up the apple. It is improbable that if Bill moved to the office, and Julius is a rhino, then Greg is a frog. There is almost no chance that if either Julius is a rhino, or Bill moved to the office, then Fred left the football.
hypothesis: Chances are slight that john put down the milk, or Bill moved to the office.
valid_hypothesis: It is certain that john put down the milk, or Bill moved to the office.
invalid_hypothesis: Chances are slight that john put down the milk, or Bill moved to the office.
hypothesis_assertion: John put down the milk, or Bill moved to the office.