context: It is improbable that Lily is a frog. It is improbable that Julius is a frog. It is certain that Brian is green. It is highly unlikely that if Lily is a frog, and Julius is a frog, then Jessica is a wolf. It is certain that if Lily is a frog, or Julius is a frog, then John put down the apple. There is a better than even chance that if Brian is green, and Julius is a frog, then Greg is a swan.
hypothesis: It is highly unlikely that greg is a swan, and Julius is a frog.
valid_hypothesis: It is highly unlikely that greg is a swan, and Julius is a frog.
invalid_hypothesis: It is probable that greg is a swan, and Julius is a frog.
hypothesis_assertion: Greg is a swan, and Julius is a frog.