context: We believe that Gertrude is a mouse. It is unlikely that John went to the kitchen. It is impossible that Bernhard is a lion. It is improbable that if Bernhard is a lion, or Gertrude is a mouse, then Sandra grabbed the milk. It is likely that if Bernhard is a lion, or John went to the kitchen, then Julius is white. It is improbable that if John went to the kitchen, or Bernhard is a lion, then Mary is in the cinema.
hypothesis: We believe that sandra grabbed the milk, or Gertrude is a mouse.
valid_hypothesis: We believe that sandra grabbed the milk, or Gertrude is a mouse.
invalid_hypothesis: It is probably not the case that sandra grabbed the milk, or Gertrude is a mouse.
hypothesis_assertion: Sandra grabbed the milk, or Gertrude is a mouse.