context: It is probable that Brian is a frog. It is improbable that Bernhard is green. It is impossible that Jeff went to the garden. There is almost no chance that if either Bernhard is green, or Brian is a frog, then Julius is a lion. It is likely that if either Bernhard is green, or Jeff went to the garden, then John moved to the office. There is little chance that if Jeff went to the garden, and Brian is a frog, then Greg is gray.
hypothesis: Chances are about even that greg is gray, or Jeff went to the garden.
valid_hypothesis: It is impossible that greg is gray, or Jeff went to the garden.
invalid_hypothesis: Chances are about even that greg is gray, or Jeff went to the garden.
hypothesis_assertion: Greg is gray, or Jeff went to the garden.