context: It is improbable that Julius is a frog. There is almost no chance that Brian is a swan. There is a very good chance that Emily is a cat. There is almost no chance that if either Brian is a swan, or Julius is a frog, then John picked up the apple. It is almost certain that if either Emily is a cat, or Julius is a frog, then Mary moved to the office. We doubt that if Julius is a frog, and Emily is a cat, then Greg is green.
hypothesis: We believe that either Mary moved to the office, or Julius is a frog.
valid_hypothesis: We believe that either Mary moved to the office, or Julius is a frog.
invalid_hypothesis: It is highly unlikely that either Mary moved to the office, or Julius is a frog.
hypothesis_assertion: Either Mary moved to the office, or Julius is a frog.