context: There is a better than even chance that Emily is a sheep. We believe that Brian is a frog. Chances are slight that John moved to the office. It is probably not the case that if either Emily is a sheep, or Brian is a frog, then Mary put down the milk. It is highly unlikely that if either Emily is a sheep, or Brian is a frog, then Lily is yellow. It is unlikely that if John moved to the office, or Emily is a sheep, then Greg is a swan.
hypothesis: It is probably not the case that brian is a frog, or Emily is a sheep.
valid_hypothesis: It is highly likely that brian is a frog, or Emily is a sheep.
invalid_hypothesis: It is probably not the case that brian is a frog, or Emily is a sheep.
hypothesis_assertion: Brian is a frog, or Emily is a sheep.