context: It is improbable that Julius is a lion. There is little chance that Greg is green. We doubt that Mary went to the hallway.
hypothesis: We doubt that greg is green, or Julius is a lion.
valid_hypothesis: We doubt that greg is green, or Julius is a lion.
invalid_hypothesis: We believe that greg is green, or Julius is a lion.
hypothesis_assertion: Greg is green, or Julius is a lion.