context: It is almost certain that Greg is gray. It is highly unlikely that Lily is a frog. There is almost no chance that Gertrude is a mouse. There is almost no chance that if either Gertrude is a mouse, or Lily is a frog, then Mary moved to the garden. It is impossible that if either Lily is a frog, or Gertrude is a mouse, then John went to the office. It is probable that if Greg is gray, and Gertrude is a mouse, then Sandra got the football.
hypothesis: It is impossible that mary moved to the garden, or John went to the office.
valid_hypothesis: It is impossible that mary moved to the garden, or John went to the office.
invalid_hypothesis: It is certain that mary moved to the garden, or John went to the office.
hypothesis_assertion: Mary moved to the garden, or John went to the office.