context: It is highly likely that Lily is white. It is highly unlikely that Mary dropped the apple. There is little chance that John went to the kitchen. It is likely that if Lily is white, and Mary dropped the apple, then Greg is a rhino. There is a better than even chance that if Mary dropped the apple, or Lily is white, then Brian is a frog. It is impossible that if either Mary dropped the apple, or Lily is white, then Julius is gray.
hypothesis: There is a very good chance that either John went to the kitchen, or Lily is white.
valid_hypothesis: There is a very good chance that either John went to the kitchen, or Lily is white.
invalid_hypothesis: It is unlikely that either John went to the kitchen, or Lily is white.
hypothesis_assertion: Either John went to the kitchen, or Lily is white.