context: It is probably not the case that Lily is a frog. There is little chance that Mary dropped the apple. There is a very good chance that Brian is a swan.
hypothesis: It is highly likely that brian is a swan, or Lily is a frog.
valid_hypothesis: It is highly likely that brian is a swan, or Lily is a frog.
invalid_hypothesis: There is almost no chance that brian is a swan, or Lily is a frog.
hypothesis_assertion: Brian is a swan, or Lily is a frog.