context: It is certain that Lily is green. We believe that Brian is a frog. Chances are slight that Julius is a lion. It is almost certain that if either Julius is a lion, or Brian is a frog, then Julie is in the kitchen. We believe that if Julius is a lion, and Brian is a frog, then John went to the garden. It is highly likely that if either Brian is a frog, or Lily is green, then Gertrude is a sheep.
hypothesis: We believe that brian is a frog, and Lily is green.
valid_hypothesis: We believe that brian is a frog, and Lily is green.
invalid_hypothesis: There is little chance that brian is a frog, and Lily is green.
hypothesis_assertion: Brian is a frog, and Lily is green.