context: It is highly likely that Yann is tired. It is probably the case that Mary went to the garden. It is improbable that Julius is a swan.
hypothesis: It is improbable that either Yann is tired, or Julius is a swan.
valid_hypothesis: There is a very good chance that either Yann is tired, or Julius is a swan.
invalid_hypothesis: It is improbable that either Yann is tired, or Julius is a swan.
hypothesis_assertion: Either Yann is tired, or Julius is a swan.