context: It is almost certain that Greg is gray. Chances are slight that John moved to the office. It is likely that Lily is a frog. We doubt that if either Lily is a frog, or Greg is gray, then Mary grabbed the milk. It is unlikely that if John moved to the office, and Lily is a frog, then Emily is a cat. Chances are slight that if Greg is gray, or John moved to the office, then Bernhard is a swan.
hypothesis: It is almost certain that greg is gray, or Emily is a cat.
valid_hypothesis: It is almost certain that greg is gray, or Emily is a cat.
invalid_hypothesis: There is little chance that greg is gray, or Emily is a cat.
hypothesis_assertion: Greg is gray, or Emily is a cat.