context: A woman is petting a dog outside.
hypothesis: Chances are slight that a woman is rewarding a dog for bringing back a thrown stick.
valid_hypothesis: Chances are slight that a woman is rewarding a dog for bringing back a thrown stick.
invalid_hypothesis: It is probably the case that a woman is rewarding a dog for bringing back a thrown stick.
hypothesis_assertion: A woman is rewarding a dog for bringing back a thrown stick.