context: It is impossible that Julius is a frog. It is probably not the case that Daniel left the apple. Chances are about even that Mary went to the kitchen. It is probably the case that if Daniel left the apple, or Julius is a frog, then Gertrude is a cat. It is unlikely that if Mary went to the kitchen, and Julius is a frog, then Brian is green. It is likely that if either Daniel left the apple, or Mary went to the kitchen, then Lily is a swan.
hypothesis: It is impossible that mary went to the kitchen, or Lily is a swan.
valid_hypothesis: There is a better than even chance that mary went to the kitchen, or Lily is a swan.
invalid_hypothesis: It is impossible that mary went to the kitchen, or Lily is a swan.
hypothesis_assertion: Mary went to the kitchen, or Lily is a swan.