context: It is likely that Emily is a cat. It is improbable that Brian is green. We believe that Mary moved to the office. It is probable that if Mary moved to the office, or Emily is a cat, then Sandra took the milk. It is highly unlikely that if Mary moved to the office, and Emily is a cat, then John discarded the apple. We doubt that if Brian is green, or Emily is a cat, then Lily is yellow.
hypothesis: It is probably not the case that brian is green, or Sandra took the milk.
valid_hypothesis: It is probable that brian is green, or Sandra took the milk.
invalid_hypothesis: It is probably not the case that brian is green, or Sandra took the milk.
hypothesis_assertion: Brian is green, or Sandra took the milk.