context: It is probable that Mary dropped the apple. It is impossible that Greg is a frog. It is probably the case that Lily is a rhino.
hypothesis: It is likely that greg is a frog, or Mary dropped the apple.
valid_hypothesis: It is likely that greg is a frog, or Mary dropped the apple.
invalid_hypothesis: We doubt that greg is a frog, or Mary dropped the apple.
hypothesis_assertion: Greg is a frog, or Mary dropped the apple.