context: There is a very good chance that Bernhard is a lion. We believe that Mary went to the office. It is unlikely that Brian is green. Chances are slight that if either Mary went to the office, or Brian is green, then Emily is a sheep. It is almost certain that if Mary went to the office, and Brian is green, then Daniel left the apple. There is little chance that if either Brian is green, or Mary went to the office, then Greg is gray.
hypothesis: We doubt that either Daniel left the apple, or Greg is gray.
valid_hypothesis: We doubt that either Daniel left the apple, or Greg is gray.
invalid_hypothesis: It is probably the case that either Daniel left the apple, or Greg is gray.
hypothesis_assertion: Either Daniel left the apple, or Greg is gray.