context: We believe that Bill went to the kitchen. There is almost no chance that Lily is a swan. Chances are about even that Julius is a lion.
hypothesis: We believe that bill went to the kitchen, or Lily is a swan.
valid_hypothesis: We believe that bill went to the kitchen, or Lily is a swan.
invalid_hypothesis: It is highly unlikely that bill went to the kitchen, or Lily is a swan.
hypothesis_assertion: Bill went to the kitchen, or Lily is a swan.